CN108741424B

CN108741424B - Article of footwear

Info

Publication number: CN108741424B
Application number: CN201810516003.9A
Authority: CN
Inventors: 卡莱布·W·戴尔; 奥斯汀·奥朗; 安德烈亚·M·维内; 萨曼莎·扬; 彼得·拉姆; 皮特·威廉姆斯
Original assignee: Nike Inc
Current assignee: Nike Inc
Priority date: 2016-07-22
Filing date: 2017-07-24
Publication date: 2021-09-03
Anticipated expiration: 2037-07-24
Also published as: KR102275005B1; US20180020767A1; CN113397270A; CN115413852A; DE202017007089U1; CN113397269B; CN108741425A; KR20230003448A; CN113397268B; WO2018017907A1; KR20210006524A; EP3504997B1; CN107637913A8; EP3498122A1; EP3504996A1; CN108685271A; CN113397270B; KR102481740B1; EP3508088A1; CN107637913B

Abstract

An article of footwear is provided that includes an upper, a tightening grip, a loosening grip, and a drawstring. The upper has a heel portion, a instep portion, and a forefoot portion. A tightening grip is disposed at an outer surface of the upper. A slack grip is disposed at an outer surface of the upper. The pull cord is operatively connected to the tightening grip and is movable in a tightening direction to move the upper to a tightened state when the tightening grip is pulled away from the upper and is movable in a loosening direction to move the upper to a loosened state when the loosening grip is pulled away from the upper.

Description

Article of footwear

The application is a divisional application of an invention patent application with the application date of 2017, 7, 24 and the application number of 201710607317.5, and the invention name of the invention is 'rope lock mechanism and a shoe product comprising the rope lock mechanism'.

Technical Field

The present disclosure relates generally to articles of footwear having a dynamic lacing system for moving the footwear between a tightened state and a relaxed state.

Background

This section provides background information related to the present disclosure that is not necessarily prior art.

An article of footwear conventionally includes an upper and a sole structure. The upper may be formed from any suitable material that receives, secures, and supports the foot on the sole structure. A bottom portion of the upper proximate a bottom surface of the foot is attached to the sole structure. The sole structure generally includes a layered arrangement extending between an outsole that provides wear resistance and traction with a ground-engaging surface and an insole disposed between the outsole and the upper to cushion the foot.

The upper may be fitted with laces, snaps, or other fasteners to adjust the fit of the upper about the foot. For example, the lace may be tightened to close the upper around the foot and tied when the desired fit of the upper around the foot is achieved. Care should be taken to ensure that the upper is not too loose or too tight around the foot each time the lace is tied. Further, the laces may be loosened or untied during the wearing of the shoe. While fasteners such as hook and loop fasteners are easier and faster to operate than conventional laces, these fasteners are prone to wear over time and require more attention to achieve the desired tightness when securing the upper to the foot.

Known automatic tightening systems typically include a tightening mechanism, such as a rotatable knob, that is operable to apply a tensioning force to one or more cords that interact with the upper to close the upper around the foot. While these automatic tightening systems may incrementally increase the amount of tightening force of the one or more cords to achieve the desired upper-around-foot fit, these systems require time-consuming efforts to manipulate the tightening mechanism to properly tighten the cords to tighten the upper around the foot, and when it is desired to remove the shoe from the foot, the wearer needs to simultaneously depress the release mechanism and pull the upper away from the foot to release the tightening force of the cords. Thus, known automatic tightening systems lack suitable provisions for both quickly adjusting the tension of the cord to close the upper around the foot and for quickly releasing the tension applied to the cord so that the upper may be quickly loosened to remove the shoe from the foot. In addition, the tightening mechanisms employed by these known automatic tightening systems need to be incorporated onto the exterior of the upper so that the tightening mechanism can be accessed by the wearer to adjust the fit of the upper about the foot, thereby detracting from the overall appearance and aesthetics of the footwear.

Disclosure of Invention

At least a portion of the upper of the article of footwear, and in some embodiments substantially the entire upper of the article of footwear, may be formed from a knitted component. The knitted component may additionally or alternatively form another element of the article of footwear, such as, for example, an inner liner. The knitted component can have a first side that forms an interior surface of the upper (e.g., facing a space of the article of footwear) and a second side (e.g., generally facing away from the first side) that forms an exterior surface of the upper. The upper including the knitted component may substantially surround the space to generally enclose a human foot when the article of footwear is in use. The first and second sides of the knitted component may exhibit different properties (e.g., the first side may provide wear resistance and comfort, while the second side may be relatively rigid and provide water resistance, among other advantageous properties mentioned below). The knitted component can be formed as a unitary, one-piece element during a knitting process, such as a weft knitting process (e.g., using a flat knitting machine or a circular knitting machine), a warp knitting process, or any other suitable knitting process. That is, the knitting process may substantially form the knit structure of the knitted component without requiring a significant post-knitting (post-knitting) process or step. Alternatively, two or more portions of the knitted component may be separately formed as a unitary, one-piece element and the respective elements subsequently attached. In some embodiments, the knitted component can be shaped after the knitting process to form and maintain a desired shape of the upper (e.g., by using a last that takes the shape of a foot). The shaping process may include attaching the knitted component to another object (e.g., a midsole) at the seam by stitching, by an adhesive, by bonding, or by another suitable attachment process and/or attaching one portion of the knitted component to another portion of the knitted component.

Forming the upper using a knitted component can provide the upper with advantageous properties including, but not limited to, a particular degree of elasticity (e.g., expressed in terms of young's modulus), breathability, flexibility, strength, moisture absorption, weight, and abrasion resistance. These characteristics can be achieved by: by selecting a particular single or multi-layer knit structure (e.g., ribbed knit structure, single plain knit structure, double knit flat knit structure), by varying the size and tension of the knit structure, by using one or more yarns formed of a particular material (e.g., polymeric materials or elastic materials such as elastic fibers) or structure (e.g., multifilament or monofilament), by selecting yarns having a particular size (e.g., denier), or a combination thereof. Knitted components may also provide desirable aesthetic characteristics by incorporating yarns having different colors, textures, or other visual characteristics arranged in a particular pattern. The yarns themselves and/or the knit structure formed by one or more of the yarns of the knitted component may vary at different locations such that the knitted component includes two or more portions having different properties (e.g., a portion forming a throat area of an upper may be relatively elastic while another portion may be relatively inelastic). In some embodiments, the knitted component may incorporate a specific material or materials that change in response to a stimulus (e.g., temperature, humidity, current, magnetic field, or light). For example, a knitted component may include yarns formed from thermoplastic polymer materials (e.g., polyurethanes, polyamides, polyolefins, and nylons) that transition from a solid state to a softened or liquid state when subjected to a particular temperature at or above their melting point, and then transition back to a solid state when cooled. The thermoplastic polymer material may provide the ability to heat a portion of the knitted component and subsequently cool a portion of the knitted component, thereby forming a region of the material that exhibits a combination of specific advantageous properties including, for example, relatively high stiffness, strength, and water resistance.

In some embodiments, the knitted component may include one or more yarns or strands, referred to herein as "tension strands," that are at least partially embedded or otherwise inserted into the knit structure of the knitted component during or after the knitting process. The tension strands may be substantially inelastic to have a substantially fixed length. The tension strands may extend through multiple paths of the knitted component or through channels formed within the knitted component and may limit stretch of the knitted component in at least one direction. For example, the tension strands may extend from the sole region, and/or approximately from the bite of the upper, to the throat region of the upper to limit stretching of the upper in a lateral direction. The tension strand may form one or more lace apertures for receiving a lace and/or may extend around at least a portion of the lace apertures formed in the knit structure of the knitted component.

One aspect of the present disclosure provides an article of footwear including an upper defining an interior space and a first strand movable in a tightening direction to move the upper to a tightened state and movable in a loosening direction to move the upper to a loosened state. The article of footwear also includes a tightening grip operable to move away from the upper in a first direction to move the first cord in a tightening direction, and a cord lock operable in a locked state to restrict movement of the first cord in a slack direction and operable in an unlocked state to allow movement of the first cord in the slack direction. The article of footwear also includes a release grip operable to move away from the upper in a second direction to move the cord lock from the locked state to the unlocked state, the release grip being separate from the tightening grip.

Implementations of the disclosure may include one or more of the following optional features. In some implementations, the cord lock is disposed away from the tightening grip and the release grip. The article of footwear may also include a sole structure attached to the upper. In some examples, the cinch grip extends from the upper, and the cord lock is disposed within the sole structure, and the slack grip extends from the upper. Alternatively, a slack grip may extend from the upper, and a cord lock may be disposed within the sole structure.

In some configurations, the sole structure includes an insole and an outsole. The insole may include a cavity in which the cord lock is disposed. The cavity may be opposite the outsole or the upper. The article of footwear may also include a midsole attached to the upper, the cavity being opposite the midsole. In some examples, the cord lock is attached to the midsole.

In some implementations, the tightening grip and the release grip are disposed on opposite sides of an ankle opening of the upper. The release grip may extend from a heel region of the upper. The article of footwear may also include a second cord having a first portion forming a cinch grip and a second portion received by the cord lock. In some examples, the effective length of the second cord increases as the tightening grip moves away from the upper. In other examples, the effective length of the first cord decreases as the tightening grip moves away from the upper. Additionally or alternatively, a portion of the first cord retracts into the cord lock when the tightening grip is moved away from the upper. In some configurations of the article of footwear, the first direction is different than the second direction.

Another aspect of the present disclosure provides an article of footwear including an upper defining an interior space and a first cord portion movable in a first tightening direction to move the upper to a tightened state and movable in a first loosening direction to move the upper to a loosened state. The article of footwear also includes a second cord portion movable in a second tightening direction to move the first cord portion in the first tightening direction and movable in a second loosening direction when the first cord portion is moved in the first loosening direction. The article of footwear also includes a cord lock operable in a locked state to restrict movement of the first cord portion in a first slack direction and movement of the second cord portion in a second slack direction, and operable in an unlocked state to allow movement of the first cord portion in the first slack direction and movement of the second cord portion in the second slack direction.

Implementations of the disclosure may include one or more of the following optional features. In some examples, the second strand portion forms a tightening grip that is formed as a loop and is operable to move in a first direction away from the upper to move the second strand portion in a second tightening direction. The article of footwear may further include a release grip operable to move away from the upper in a second direction to move the cord lock from the locked state to the unlocked state. In this example, the release catch may be separate from the tightening catch, and the first direction may be different from the second direction. Additionally or alternatively, wherein the cord lock may be disposed remotely from the tightening grip and the release grip.

In some configurations, an article of footwear includes a sole structure attached to an upper. Here, the cord lock may be disposed within the sole structure. Alternatively, the sole structure may include an insole and an outsole. In some examples, the insole includes a cavity, and the cord lock is disposed within the cavity. The cavity may be opposite the outsole or the upper. The article of footwear may also include a midsole attached to the upper, the cavity being opposite the midsole. In some examples, the cord lock is attached to the midsole.

In some implementations, the effective length of the second cord portion increases as the second cord portion moves in the second tightening direction. Additionally or alternatively, the effective length of the first rope portion may be reduced when the first rope portion is moved in the first tightening direction. In other examples, a portion of the first cord portion retracts into the cord lock when the first cord portion is moved in the first tightening direction. Similarly, a portion of the second cord portion may be retracted into the cord lock when the second cord portion is moved in the second slack direction. In some examples, the first cord portion and the second cord portion are portions of the same cord.

Another aspect of the present disclosure provides a cord lock mechanism that includes a housing defining a cavity. The cord lock mechanism also includes a spool disposed within the cavity and including a first annular groove operable to receive the first cord and a second annular groove operable to receive the second cord. The spool is rotatable in a first direction relative to the housing to pay out a first portion of the first cord from the housing and wind a first portion of the second cord within the second annular groove. The spool is also rotatable in a second direction relative to the housing to pay out a second portion of the second cord from the housing and wind a second portion of the first cord within the first annular groove. The cord lock mechanism further includes a first lock pawl operable between a locked state that restricts rotation of the spool relative to the housing in the second direction and an unlocked state that allows rotation of the spool relative to the housing in the second direction.

Implementations of the disclosure may include one or more of the following optional features. In some examples, the first portion of the first cord and the second portion of the first cord are portions of the same cord. The first portion of the second cord and the second portion of the second cord may be portions of the same cord. In other examples, the length of the first portion of the first cord is equal to the length of the first portion of the second cord. Additionally or alternatively, the length of the second portion of the first cord is equal to the length of the second portion of the second cord.

In some configurations, the first lock pawl allows the spool to rotate in a first direction relative to the housing when in the locked state. Optionally, the first lock pawl may allow the spool to rotate in a first direction relative to the housing when in the unlocked state. In some examples, the first lock pawl includes a series of first teeth that engage the spool in the locked condition. When the first lock pawl includes a series of first teeth that engage the spool in the locked condition, the spool may include a series of second teeth that cooperatively receive the series of first teeth when the first lock pawl is in the locked condition. In this example, a series of second teeth may be formed on the inner surface of the spool.

In some implementations, the first pawl is rotatably supported by the housing within the cavity. The first lock pawl may be biased to the locked state. Additionally or alternatively, the first locking pawl is biased to the locked state by a biasing member. In this example, the biasing member may be a spring.

The cord lock mechanism may further include a second locking pawl supported within the housing for rotation between a first position spaced from the spool and a second position in contact with the control surface of the spool. Here, the second locking pawl may be rotatably supported by the housing. Optionally, the second lock pawl is rotatably supported by the first lock pawl. Additionally or alternatively, the second locking pawl is biased in the second position. In other examples, the second locking pawl is biased in the second position by a biasing member. In this example, the biasing member may be a spring. When the cord lock mechanism includes a second lock pawl supported within the housing to be rotatable between a first position spaced from the spool and a second position in contact with a control surface of the spool, the control surface may be formed on an inner surface of the spool. The housing may include at least one flange extending therefrom. In this example, the at least one flange includes at least one aperture formed therethrough.

In some implementations, the cord lock mechanism is incorporated into an article of footwear. The cord lock mechanism may be disposed within an insole of the article of footwear. The cord lock mechanism may also be attached to an upper of an article of footwear.

Another aspect of the present disclosure provides a cord lock mechanism that includes a housing defining a cavity. The cord lock mechanism further includes a spool disposed within the cavity. The spool receives the first and second cords. The cord lock mechanism also includes a first locking pawl operable between an unlocked state and a locked state. In the unlocked state, the first lock pawl is spaced apart from the spool to allow the spool to rotate in a first direction and a second direction opposite the first direction with respect to the housing. In the locked state, the first lock pawl engages an inner surface of the spool to restrict rotation of the spool relative to the housing in the second direction.

Implementations of the disclosure may include one or more of the following optional features. In some configurations, the spool includes a first annular groove that receives the first cord and a second annular groove that receives the second cord. In this configuration, the spool is operable to pay out the first portion of the first cord from the housing and wind the first portion of the second cord within the second annular groove when rotated in the first direction.

In some examples, the spool is operable to pay out the second portion of the second cord from the housing and wind the second portion of the first cord within the first annular groove when rotated in the second direction. Here, the first portion of the first cord and the second portion of the first cord may be the same. The first portion of the second cord and the second portion of the second cord may also be portions of the same cord. Additionally or alternatively, the length of the first portion of the first cord is equal to the length of the first portion of the second cord. Further, the length of the second portion of the first cord is equal to the length of the second portion of the second cord.

In some implementations, the first lock pawl allows the spool to rotate in a first direction relative to the housing when in the locked state. The first lock pawl may engage along the teeth of the inner surface when the first lock pawl is in the locked state and the spool rotates in the first direction. The first lock pawl may include a series of first teeth that engage the spool in the locked condition. Here, the spool may include a series of second teeth cooperatively receiving the series of first teeth when the first lock pawl is in the locked state, the series of second teeth being formed on an inner surface of the spool. In some examples, the first lock pawl is rotatably supported by the housing within the cavity. The first lock pawl may be biased to the locked state. The first lock pawl may be biased to the locked state by a biasing member. Here, the biasing member may be a spring.

The cord lock mechanism may further include a second locking pawl supported within the housing for rotation between a first position spaced from the spool and a second position in contact with the control surface of the spool. In this example, the second locking pawl may be rotatably supported by the housing. Alternatively, the second lock pawl may be rotatably supported by the first lock pawl. The second locking pawl may be biased in the second position. The second locking pawl may be biased in the second position by a biasing member. The biasing member may be a spring. The control surface may be formed on an inner surface of the spool.

In some configurations, the housing includes at least one flange extending therefrom. In this example, the at least one flange includes at least one aperture formed therethrough. The cord lock mechanism may be incorporated into an article of footwear. Here, the cord lock mechanism is disposed within an insole of the article of footwear. The cord lock mechanism may also be attached to an upper of an article of footwear.

Another aspect of the present disclosure provides a cord lock for a cord. The cord lock includes a housing including a first engagement surface and a second engagement surface. The first and second engagement surfaces converge toward each other. The cord lock further includes a lock member slidably disposed within the housing and movable between a locked state and an unlocked state, and including first and second lock surfaces converging toward one another. The first lock surface is operable to clamp the first portion of the cord between the first engagement surface and the first lock surface in the locked state. The second lock surface is operable to clamp a second portion of the cord between the second engagement surface and the second lock surface in the locked state to restrict movement of the cord in the first direction relative to the housing. The cord lock also includes a biasing member operable to apply a biasing force and bias the lock member to the locked state.

Implementations of the disclosure may include one or more of the following optional features. In some examples, the biasing member is a spring. Here, the spring may be a coil spring.

The cord lock may also include a release wire attached to the lock member. The release wire is operable to move the lock member from the locked state to the unlocked state when a predetermined amount of force is applied to the release wire. In this example, the release wire may be attached to the lock member at an end of the lock member opposite the biasing member.

In some implementations, the lock member may include a retaining portion operable to selectively engage the housing and retain the lock member in the unlocked state. In this implementation, the retaining portion may be provided at an end of the lock member opposite the biasing member. The retaining portion may be formed on the protrusion portion of the lock member. The tab portion is movable relative to the lock member between a rest state and a flexed state. The tab portion may be biased to a rest state. The tab portion is operable to move from a rest state to a flexed state to separate the retention portion from the housing. Here, the cord lock may further include a release wire attached to the tab portion, the release wire operable to move the tab portion from the resting state to the flexed state. The release wire is operable to move the lock member from the locked state to the unlocked state when a predetermined amount of force is applied to the release wire.

In some examples, the lock member includes first and second recesses operable to selectively receive first and second retaining portions of the housing to retain the lock member in the unlocked state. Here, the first holding portion and the second holding portion are movable between the extended state and the retracted state. The first and second holding portions may also be biased to the extended state by the first and second biasing members. The first and second biasing members may be springs. The first and second biasing members may be coil springs.

In some configurations, the first retaining portion and the second retaining portion are integrally formed with the housing. Alternatively, the first holding portion and the second holding portion may function as a living hinge movable between the extended state and the retracted state. Additionally or alternatively, the first and second retaining portions may be in a retracted state when received within the first and second recesses, respectively.

In some implementations, at least one of the first and second lock surfaces includes a protrusion operable to grip the cord when the lock member is in the locked state. The cord is also movable in a second direction opposite the first direction when the lock member is in the locked or unlocked state.

The cord lock may be incorporated into an article of footwear. An article of footwear may include a sole structure and an upper. The cord lock may be at least partially disposed within a cavity formed in the sole structure. Optionally, a cord lock may be attached to the upper.

Another aspect of the present disclosure provides an article of footwear. An article of footwear includes an upper, a tightening grip extending from the upper and configured as a loop, and a drawstring coupled with the tightening grip and operable to move the upper to one of a tightened state and a loosened state. The drawstring is movable in a tightening direction to move the upper to a tightened state and in a loosening direction to move the upper to a loosened state. The article of footwear also includes a first conduit having an inner diameter greater than an outer diameter of the drawstring and receiving a portion of the drawstring therein. The first conduit is operable to accommodate the gathering of the pull cord when the pull cord is moved in one of a tightening direction and a loosening direction.

Implementations of the disclosure may include one or more of the following optional features. In some configurations, the article of footwear further includes a second conduit having an inner diameter greater than an outer diameter of the drawstring and receiving a portion of the drawstring therein. The second conduit is operable to accommodate the gathering of the pull cord when the pull cord is moved in the other of the take-up direction and the slack direction.

In some examples, the article of footwear also includes a cord lock operable between a locked state and an unlocked state. The locked state can restrict movement of the pull cord in the slack direction, in both the slack direction and the tightening direction. The unlocked state may allow the pull cord to move in both the slack and the tightened directions. In some examples, the cord lock allows the draw cord to move in a tightening direction when the cord lock is in a locked state. In other examples, the cord lock may restrict movement of the draw cord in the tightening direction when the cord lock is in the locked state. In some configurations, the cord lock is biased to a locked state. Optionally, the cord lock may further comprise a release operable to transition the cord lock from the locked state to the unlocked state.

The article of footwear may also include an outsole attached to the upper and including a ground-contacting surface. The article of footwear may also include an inner surface disposed on an opposite side of the outsole than the ground-contacting surface. The inner surface defines a receiving area in which the cord lock is received.

In some examples, an article of footwear includes an outsole attached to an upper and including a ground-contacting surface. The inner surface may be disposed on an opposite side of the outsole than the ground-contacting surface. In this example, the article of footwear may include an insole having a footbed and a bottom surface disposed on an opposite side of the insole from the footbed and opposite an inner surface of the outsole to define a cavity between the bottom surface and the inner surface of the outsole. The cord lock may be disposed within the cavity between the inner surface of the outsole and the bottom surface of the insole.

In some implementations, the pull cord includes a continuous loop defining a first length between the cord lock and the take-up grip and a second length between the cord lock and the slack grip. Movement of the pull cord in the tightening direction causes the first length to increase and the second length to decrease. Movement of the pull cord in a slack direction causes the first length to decrease and the second length to increase.

In some examples, a cord lock includes a housing and a lock member slidably disposed within the housing. The lock member is movable between a locked position that restricts movement of the cord relative to the housing and an unlocked position that allows movement of the cord relative to the housing. Here, the lock member may include a first lock surface opposite the first engagement surface of the housing and a second lock surface opposite the second engagement surface of the housing. The lock member is operable to clamp the draw cord between the first lock surface and the first engagement surface in the locked position. The lock member is further operable to clamp the pull cord between the second lock surface and the second engagement surface in the locked position. The first lock surface and the second lock surface may converge. In some examples, the first lock surface is substantially parallel to the first engagement surface and the second lock surface is substantially parallel to the second engagement surface. Optionally, the cord lock may include a release operable to move the lock member from the locked position to the unlocked position. Here, the release may be attached to the lock member to allow a force applied to the release to move the lock member relative to the housing in a direction away from the first and second engagement surfaces. The housing may include a retaining portion operable to engage the latch member when the latch member is moved a predetermined distance away from the first and second engagement surfaces. The retaining portion is operable to retain the lock member in the unlocked position. In some examples, the cord lock is biased in the locked position by a biasing member.

In some configurations, the cord lock may include a housing and a spool supported by the housing and configured to rotate in a first direction relative to the housing when the draw cord is moved in the tightening direction and configured to rotate in an opposite second direction when the draw cord is moved in the loosening direction. The spool may include a first annular groove configured to collect a first portion of the pull cord and a second annular groove configured to collect a second portion of the pull cord. In such a configuration, the cord lock may include a plurality of teeth supported for common rotation with the spool and positioned circumferentially about the axis of the spool. A first pawl supported by the housing and including a first biasing member is operable to bias the first pawl into engagement with the plurality of teeth to selectively restrict rotation of the spool in the second direction. The plurality of teeth may be angled to allow the spool to rotate in a first direction when the first pawl engages the plurality of teeth. Additionally or alternatively, the cord lock may further include a release configured to selectively disengage the first pawl from the plurality of teeth to allow the spool to rotate in the second direction upon application of a predetermined force to the release that overcomes the biasing force of the first biasing member. The cord lock may also include a second pawl having a second biasing member configured to bias the second pawl into engagement with a control surface associated with the spool to allow the spool to rotate in a second direction when the first pawl is disengaged from the plurality of teeth. The second pawl may be rotatably supported by the first pawl. In some examples, the first portion of the pull cord and the second portion of the pull cord approach the spool from opposite directions.

In some implementations, the cord lock is supported by an outsole attached to the upper. In other implementations, the cord lock may be disposed between the outsole and the insole of the shoe.

Another aspect of the disclosure provides an article of footwear including an upper and a drawstring movable in a tightening direction to move the upper to a tightened state and movable in a loosening direction to move the upper to a loosened state. The article of footwear also includes a first conduit operable to receive a length of the drawstring therein to accommodate gathering of the drawstring as the drawstring is moved in one of the tightening direction and the loosening direction. The length of the pull cord received within the first conduit is greater than the length of the first conduit when the pull cord is moved in one of the take-up and take-down directions.

Implementations of the disclosure may include one or more of the following optional features. In some examples, the article of footwear includes a second conduit operable to receive a length of the drawstring therein to accommodate gathering of the drawstring as the drawstring is moved in the other of the tightening direction and the loosening direction. The length of the pull cord received within the second conduit is greater than the length of the second conduit when the pull cord is moved in the other of the take-up direction and the slack direction.

In some configurations, an article of footwear includes a cord lock operable between a locked state that restricts movement of a draw cord in a slack direction and an unlocked state that allows movement of the draw cord in both a slack direction and a tightened direction. When the cord lock is in the locked state, the cord lock may allow the draw cord to move in the tightening direction. When the rope lock is in a locked state, the rope lock can also limit the movement of the pull rope along the tightening direction. In these configurations, the cord lock may be biased into a locked state. The cord lock may further include a release operable to transition the cord lock from the locked state to the unlocked state.

In some implementations, the article of footwear further includes an outsole attached to the upper and including a ground-contacting surface and an inner surface disposed on an opposite side of the outsole than the ground-contacting surface, the inner surface defining a receiving area in which the cord lock is received. In other implementations, an article of footwear may include an outsole attached to an upper and including a ground-contacting surface and an inner surface disposed on a side of the outsole opposite the ground-contacting surface, and an insole having a footbed and a bottom surface disposed on a side of the insole opposite the footbed and opposite the inner surface of the outsole to define a cavity between the inner surface of the outsole and the bottom surface of the insole, the cord lock being disposed within the cavity between the inner surface of the outsole and the bottom surface of the insole. The pull cord may include a continuous loop defining a first length between the cord lock and the take-up grip and a second length between the cord lock and the slack grip. Movement of the pull cord in the tightening direction may result in an increase in the first length and a decrease in the second length. Movement of the pull cord in the slack direction may cause the first length to decrease and the second length to increase.

In some examples, a cord lock includes a housing and a lock member slidably disposed within the housing. Here, the lock member is movable between a lock position that restricts movement of the cord relative to the housing and an unlock position that allows movement of the cord relative to the housing. The lock member may include a first lock surface opposite the first engagement surface of the housing and a second lock surface opposite the second engagement surface of the housing. Here, the lock member is operable to clamp the cord between the first lock surface and the first engagement surface in the locked position and between the second lock surface and the second engagement surface in the unlocked position. The first lock surface and the second lock surface may converge. The first lock surface may be substantially parallel to the first engagement surface and the second lock surface may be substantially parallel to the second engagement surface.

In some examples, the cord lock includes a release operable to move the lock member from the locked position to the unlocked position. In this example, the release may be attached to the lock member to allow a force applied to the release to move the lock member relative to the housing in a direction away from the first and second engagement surfaces. The housing may include a retaining portion operable to engage the latch member when the latch member is moved a predetermined distance away from the first and second engagement surfaces. The retaining portion is further operable to retain the lock member in the unlocked position. The cord lock may be biased into the locked position by a biasing member.

In some implementations, the cord lock includes a housing and a spool supported by the housing and rotatable relative to the housing in a first direction when the cord is moved in the tightening direction and movable relative to the housing in an opposite second direction when the cord is moved in the loosening direction. The spool may include a first annular groove configured to collect a first portion of the pull cord and a second annular groove configured to collect a second portion of the pull cord. The cord lock may include a plurality of teeth positioned circumferentially about the axis of the spool and a first pawl supported by the housing and including a first biasing member configured to bias the first pawl into engagement with the plurality of teeth to selectively restrict rotation of the spool in a second direction. The plurality of teeth may be angled to allow the spool to rotate in a first direction when the first pawl engages the plurality of teeth.

In some examples, the cord lock further includes a release configured to selectively disengage the first pawl from the plurality of teeth to allow the spool to rotate in the second direction when a predetermined force is applied to the release that overcomes the biasing force of the first biasing member. The cord lock may further include a second pawl having a second biasing member configured to bias the second pawl into engagement with a control surface associated with the spool when the first pawl is disengaged from the plurality of teeth, thereby allowing the spool to rotate in a second direction. Here, the second pawl may be rotatably supported by the first pawl.

In some implementations, the first portion of the pull cord and the second portion of the pull cord approach the spool from opposite directions. The cord lock may also be supported by an outsole attached to the upper. In other examples, the cord lock may also be disposed between the outsole and the insole of the shoe.

Another aspect of the disclosure provides an article of footwear including an upper having a heel portion, an instep portion, and a forefoot portion, a tightening grip disposed at one of the instep portion and the heel portion of the upper, and a loosening grip disposed at the other of the instep portion and the heel portion of the upper. The article of footwear also includes a pull cord operatively connected to the tightening grip and the loosening grip. The pull cord is movable in a tightening direction when the tightening grip is pulled away from the upper to move the upper into a tightened state. The drawstring is also capable of moving in a loosening direction when the slack grip is pulled away from the upper to move the upper into a slack condition.

Implementations of the disclosure may include one or more of the following optional features. In some implementations, the article of footwear includes a cord lock operable between a locked state that restricts movement of the draw cord in a slack direction and an unlocked state that allows movement of the draw cord in both a slack direction and a tightening direction. In this implementation, the cord lock may allow the draw cord to move in the tightening direction when the cord lock is in the locked state. The cord lock may also restrict movement of the draw cord in the tightening direction when the cord lock is in the locked state. The cord lock may be biased to be in a locked state. The cord lock may further include a release operable to transition the cord lock from the locked state to the unlocked state.

In some examples, the article of footwear further includes an outsole attached to the upper and including a ground-contacting surface and an inner surface disposed on an opposite side of the outsole than the ground-contacting surface, the inner surface defining a receiving area in which the cord lock is received. In other examples, an article of footwear may include an outsole attached to an upper and including a ground-contacting surface and an inner surface disposed on a side of the outsole opposite the ground-contacting surface, and an insole having a footbed and a bottom surface disposed on a side of the insole opposite the footbed and opposite the inner surface of the outsole to define a cavity between the inner surface of the outsole and the bottom surface of the insole. The cord lock is disposed within the cavity between the inner surface of the outsole and the bottom surface of the insole.

In some configurations, the pull cord includes a continuous loop defining a first length between the cord lock and the cinch grip and a second length between the cord lock and the slack grip. Movement of the pull cord in the tightening direction may cause the first length to increase and the second length to decrease, and movement of the pull cord in the loosening direction may cause the first length to decrease and the second length to increase.

The article of footwear may also include a first conduit configured to encircle a portion of the drawstring along the first length as the drawstring moves relative to the conduit. The first conduit defines an inner diameter that may be greater than an outer diameter of the pull cord to accommodate bunching of the pull cord as the first length increases during movement of the pull cord in the tightening direction. The article of footwear may also include a second conduit configured to encircle a portion of the drawstring along the second length as the drawstring moves relative to the conduit. The second conduit defines an inner diameter that may be greater than an outer diameter of the pull cord to accommodate bunching of the pull cord as the second length decreases during movement of the pull cord in the slack direction.

In some examples, a cord lock includes a housing and a lock member slidably disposed within the housing. The lock member is movable between a locked position that restricts movement of the cord relative to the housing and an unlocked position that allows movement of the cord relative to the housing. The lock member may include a first lock surface opposite the first engagement surface of the housing and a second lock surface opposite the second engagement surface of the housing. The lock member is operable to clamp the cord between the first lock surface and the first engagement surface in the locked position, and operable to clamp the cord between the second lock surface and the second engagement surface in the unlocked position. Here, the first lock surface and the second lock surface may converge. The first lock surface may be substantially parallel to the first engagement surface and the second lock surface may be substantially parallel to the second engagement surface.

The cord lock may further include a release operable to move the lock member from the locked position to the unlocked position. The release may be attached to the lock member to allow a force applied to the release to move the lock member relative to the housing in a direction away from the first and second engagement surfaces. Here, the housing may include a retaining portion operable to engage the lock member when the lock member is moved a predetermined distance away from the first and second engagement surfaces, the retaining portion operable to retain the lock member in the unlocked position. The lock member may be biased into the locked position.

In some examples, the cord lock includes a housing and a spool supported by the housing and rotatable in a first direction relative to the housing when the cord is moved in the tightening direction and rotatable in an opposite second direction relative to the housing when the cord is moved in the loosening direction. The spool may include a first annular groove configured to collect a first portion of the pull cord and a second annular groove configured to collect a second portion of the pull cord. In this example, the cord lock may include a plurality of teeth positioned circumferentially about the axis of the spool and a first pawl supported by the housing and including a first biasing member configured to bias the first pawl into engagement with the plurality of teeth to selectively restrict rotation of the spool in the second direction. The plurality of teeth may be angled to allow the spool to rotate in a first direction when the first pawl engages the plurality of teeth. The cord lock may further include a release configured to selectively disengage the first pawl from the plurality of teeth to allow the spool to rotate in the second direction when the predetermined force is applied to the release. Optionally, the cord lock may further include a second pawl having a second biasing member configured to bias the second pawl into engagement with a control surface associated with the spool when the first pawl is disengaged from the plurality of teeth, thereby allowing the spool to rotate in a second direction. The second pawl may be rotatably supported by the first pawl.

In some configurations, the first portion of the pull cord and the second portion of the pull cord approach the spool from opposite directions. The cord lock may be supported by an outsole attached to the upper. The cord lock may be disposed between the outsole and the insole of the shoe.

In some examples, the article of footwear includes a first conduit operable to receive a length of the drawstring therein to accommodate gathering of the drawstring as the drawstring is moved in one of the tightening direction and the loosening direction. The length of the pull cord may be received within the first conduit when the pull cord is moved in one of the tightening direction and the loosening direction, wherein the length of the pull cord is greater than the length of the first conduit. Here, the article of footwear further includes a second conduit operable to receive a length of the drawstring therein to accommodate gathering of the drawstring as the drawstring is moved in the other of the tightening direction and the loosening direction. The length of the pull cord may be received within the second conduit when the pull cord is moved in the other of the take-up direction and the slack direction, wherein the length of the pull cord is greater than the length of the second conduit.

Yet another aspect of the present disclosure provides an article of footwear including an upper and a sole structure attached to the upper. The article of footwear also includes a first drawstring that extends between the upper and the sole structure and is movable in a tightening direction to move the upper into a tightened state and a loosening direction to move the upper into a loosened state. The article of footwear also includes a cord lock disposed within the sole structure and operable in a locked state to restrict movement of the first cord in a slack direction and operable in an unlocked state to allow movement of the first cord in the slack direction.

Implementations of the disclosure may include one or more of the following optional features. In some examples, the sole structure includes an outsole having a ground-contacting surface and an insole disposed between the outsole and the upper. Here, the cord lock may be received within the cavity of the insole. The cord lock may be opposite the outsole or the cord lock may be in contact with the outsole. In this example, the article of footwear may include a midsole disposed between the upper and the insole. Here, the cord lock may be received within the cavity of the insole. Additionally or alternatively, the cord lock may be opposite the midsole, may be in contact with the midsole, or may be attached to the midsole. In some configurations, the cord lock is attached to the insole. Here, the article of footwear may include a midsole attached to the upper. The midsole may be disposed between the insole and the outsole. The midsole may also be disposed between the cord lock and the outsole. Alternatively, the cord lock may be disposed within one of a heel region of the sole structure, a midfoot region of the sole structure, and a forefoot region of the sole structure, wherein the midfoot region is disposed between the heel region and the forefoot region.

Another aspect of the present disclosure provides an article of footwear that includes an upper and a sole structure, the sole structure including an insole. The article of footwear also includes a first drawstring attached to the upper. The first cord is movable in a tightening direction relative to the upper to move the upper into a tightened state and in a loosening direction relative to the upper to move the upper into a loosened state. The article of footwear also includes a cord lock disposed within the insole and operable in a locked state to restrict movement of the first cord in a tightening direction and operable in an unlocked state to allow movement of the first cord in a loosening direction.

Implementations of the disclosure may include one or more of the following optional features. In some configurations, the sole structure includes an outsole having a ground-contacting surface and an insole disposed between the outsole and the upper. The cord lock may be received within the cavity of the insole. In this configuration, the cord lock may be opposite the outsole or may be in contact with the outsole.

In some examples, an article of footwear includes a midsole disposed between an upper and an insole. In this example, the cord lock may be received within the cavity of the insole. The cord lock may be opposite the midsole, may be in contact with the midsole, or may be attached to the midsole.

In some implementations, the cord lock is attached to the insole. Here, the article of footwear may further include a midsole attached to the upper. The midsole may be disposed between an insole and an outsole of the sole structure. Additionally or alternatively, a midsole may be disposed between the cord lock and an outsole of the sole structure. Alternatively, a midsole may be disposed between the cord lock and an outsole of the sole structure. The cord lock may be disposed in one of a heel region of the sole structure, a midfoot region of the sole structure, and a forefoot region of the sole structure, wherein the midfoot region is disposed between the heel region and the forefoot region.

Yet another aspect of the present disclosure provides an article of footwear including an upper and a sole structure, the sole structure including an outsole having a ground-contacting surface. The article of footwear also includes a first drawstring attached to the upper. The first cord is movable in a tightening direction relative to the upper to move the upper into a tightened state, and the first cord is movable in a loosening direction relative to the upper to move the upper into a loosened state. The article of footwear also includes a cord lock disposed within the sole structure and opposite the outsole. The cord lock is operable in a locked state to restrict movement of the first cord in a slack direction, and the cord lock is operable in an unlocked state to allow movement of the first cord in the slack direction.

Implementations of the disclosure may include one or more of the following optional features. In some examples, the sole structure includes an insole disposed between the outsole and the upper. Here, the cord lock may be received within the cavity of the insole. The cord lock may be in contact with the outsole. Optionally, a cord lock may be attached to the outsole.

In some implementations, the article of footwear also includes a midsole disposed between the upper and the outsole. The cord lock may be received within the cavity of the midsole. In this implementation, the insole may be disposed between the cord lock and the midsole. The cord lock may be disposed in one of a heel region of the sole structure, a midfoot region of the sole structure, and a forefoot region of the sole structure, wherein the midfoot region is disposed between the heel region and the forefoot region.

Another aspect of the present disclosure provides an article of footwear including an upper, a sole structure, and a midsole attached to the upper and disposed between the upper and the sole structure. The article of footwear also includes a first drawstring attached to the upper. The first cord is movable in a tightening direction relative to the upper to move the upper into a tightened state and the first cord is movable in a loosening direction relative to the upper to move the upper into a loosened state. The article of footwear also includes a cord lock disposed within the sole structure and opposite the midsole. The cord lock is operable in a locked state to restrict movement of the first cord in a slack direction and is operable in an unlocked state to permit movement of the first cord in the slack direction.

Implementations of the disclosure may include one or more of the following optional features. In some implementations, the sole structure includes an outsole having a ground-contacting surface and an insole disposed between the outsole and the upper. Here, the cord lock may be received within the cavity of the insole. Alternatively, the cord lock may be in contact with the midsole, attached to the midsole, or attached to the insole. When the cord lock is attached to the insole, the cord lock may be attached to the midsole. Here, the cord lock may be attached to the midsole by at least one of an adhesive and a fastener. In some examples, a midsole is disposed between the insole and the outsole. In other examples, a midsole may be disposed between an insole and an outsole. Optionally, a midsole may also be disposed between the cord lock and the outsole. The cord lock may be disposed within one of a heel region of the sole structure, a midfoot region of the sole structure, and a forefoot region of the sole structure, wherein the midfoot region is disposed between the heel region and the forefoot region.

Yet another aspect of the present disclosure provides an article of footwear that includes an upper and a sole structure, the sole structure including an insole. The article of footwear also includes a first drawstring attached to the upper. The first cord is movable in a tightening direction relative to the upper to move the upper in a tightened state and the first cord is movable in a loosening direction relative to the upper to move the upper in a loosened state. The article of footwear also includes a cord lock attached to the insole and operable in a locked state to restrict movement of the first cord in a slack direction and operable in an unlocked state to allow movement of the first cord in the slack direction.

Another aspect of the disclosure provides an article of footwear including an upper and a first cord movable in a tightening direction away from the upper to move the upper to a tightened state and in a loosening direction to move the upper to a loosened state. The article of footwear also includes a cord lock disposed on the upper and operable in a locked state to restrict movement of the first cord in a slack direction and operable in an unlocked state to restrict movement of the first cord in the slack direction.

Implementations of the disclosure may include one or more of the following optional features. In some examples, the cord lock is disposed on a heel of the article of footwear. Here, the cord lock may include a release wire operable to move the cord lock from the locked state to the unlocked state. The article of footwear may also include a sole structure attached to the upper and including a ground-contacting surface. In this example, the release line may extend from the cord lock in a direction away from the ground-contacting surface. The cord lock may be elongated. Additionally, the longitudinal axis of the cord lock may be substantially perpendicular to the ground-engaging surface.

In some configurations, the cord lock includes a release wire operable to move the cord lock from the locked state to the unlocked state. The article of footwear may also include a sole structure attached to the upper and the ground-contacting surface. Here, the release line may extend from the cord lock in a direction away from the ground-contacting surface. The cord lock may be elongated. The longitudinal axis of the cord lock may be substantially perpendicular to the ground-engaging surface.

In some implementations, the cord lock includes a housing having a first engagement surface and a second engagement surface. The first and second engagement faces may converge towards each other. The cord lock may further include a lock member slidably disposed within the housing, movable between a locked state and an unlocked state, and including first and second lock surfaces converging toward one another. In the locked state, the first lock surface is operable to clamp the first portion of the first cord between the first engagement surface and the first lock surface to restrict movement of the first cord in a first direction relative to the housing. In the locked state, the second lock surface is operable to clamp the second portion of the first cord between the second engagement surface and the second lock surface to restrict movement of the first cord in the first direction relative to the housing. The cord lock may further include a biasing member operable to apply a biasing force and operable to bias the lock member in the locked state. Here, the biasing member may be a spring. The spring may be a coil spring.

In some examples, the article of footwear includes a release wire attached to the latch member and operable to move the latch member from the locked state to the unlocked state when the release wire is applied with a pulling force in an unlocking direction that exceeds a biasing force of the biasing member. Here, the release wire may be attached to the lock member at an end of the lock member opposite the biasing member. The lock member may include a retaining portion operable to selectively engage the housing and retain the lock member in the unlocked state. The retaining portion may be provided at an end of the lock member opposite the biasing member. The retaining portion may be formed on the protrusion portion of the lock member. The tab portion is movable relative to the lock member between a rest state and a flexed state. Alternatively, the tab portion may be biased to be in a rest state. The tab portion is also operable to move from a rest state to a flexed state to disengage the retention portion from the housing. The article of footwear may include a release wire attached to the tab portion, the release wire operable to move the tab portion from the resting state to the flexed state. Here, the release wire is operable to move the lock member from the locked state to the unlocked state when the release wire is applied with a predetermined amount of force.

In some configurations, the lock member includes first and second recesses operable to selectively receive first and second retaining portions of the housing to retain the lock member in the unlocked state. The first holding portion and the second holding portion are movable between an extended state and a retracted state. Additionally or alternatively, the first and second retaining portions may be biased into the extended state by first and second biasing members. Here, the first and second biasing members may be springs. The first and second biasing members may be coil springs.

In some examples, the first retaining portion and the second retaining portion are integrally formed with the housing. The first holding portion and the second holding portion may function as a living hinge that is movable between an extended state and a retracted state. The first and second holding portions are in a retracted state when the first and second holding portions are received in the first and second recesses, respectively.

In some implementations, at least one of the first and second lock surfaces includes a protrusion operable to grip the first draw cord when the lock member is in the locked state. Alternatively, the first pull cord is movable in a second direction opposite the first direction when the lock member is in the locked state or the unlocked state. Additionally or alternatively, the first pull cord is movable in a second direction opposite the first direction when the lock member is in the unlocked state.

Another aspect of the present disclosure provides an article of footwear including an upper having a series of first strand guides and a series of second strand guides. The article of footwear also includes a first strand including a first portion received by the first strand guide and extending between adjacent ones of the first strand guides and a second portion received by the second strand guide and extending between adjacent ones of the second strand guides. The first portion is movable in a first tightening direction and the second portion is movable in a second tightening direction to move the upper to a tightened state. The first portion is also movable in a first slack direction and the second portion is also movable in a second slack direction to move the upper to a slack condition. The article of footwear also includes a cord lock operable in a locked state to restrict movement of the first portion in a first slack direction and to restrict movement of the second portion in a second slack direction. The cord lock is operable in an unlocked state to allow the first portion to move in a first slack direction and to allow the second cord second portion to move in a second slack direction. The article of footwear also includes a release cord operable to move the cord lock from the locked state to the unlocked state. The release cord includes a release catch positioned away from the cord lock.

Implementations of the disclosure may include one or more of the following optional features. In some implementations, the article of footwear further includes a second cord including a first portion received by the cord lock and a second portion forming a cinching grip positioned away from the cord lock. In this implementation, the second cord is operable to place the first cord under tension to move the first portion in the first tightening direction and the second portion in the second tightening direction when the tightening grip is applied with a predetermined amount of force. The tightening grip may be disposed proximate an ankle opening of the upper. The cinch catch may be spaced apart from the release cord. Alternatively, the cinching grip may be positioned adjacent to the release cord. Additionally or alternatively, the tightening grip may be positioned closer to a forefoot region of the upper than the release cord, or the tightening grip may be positioned closer to a heel region of the upper than the release cord.

The cord lock may be disposed on a surface of the upper. The cord lock may also be provided on the heel area of the upper. In some examples, the article of footwear includes a sole structure having an insole and an outsole, where the cord lock may be disposed within the insole. The cord lock may also be received within the cavity of the insole. Alternatively, the cord lock may be opposite the outsole or may be in contact with the outsole.

In some implementations, the article of footwear also includes a midsole disposed between the upper and the insole. Here, the cord lock may be received within the cavity of the insole. Alternatively, the cord lock may be opposite the midsole, may be in contact with the midsole, or may be attached to the midsole. Additionally or alternatively, a cord lock may be attached to the insole. In some examples, the article of footwear further includes a midsole attached to the upper. In this example, the midsole may be disposed between the insole and the outsole. Optionally, a midsole may be disposed between the cord lock and the outsole.

Another aspect of the present disclosure provides an article of footwear including an upper having a series of first strand guides and a series of second strand guides. The article of footwear also includes a first strand including a first portion received by the first strand guide and extending between adjacent ones of the first strand guides and a second portion received by the second strand guide and extending between adjacent ones of the second strand guides. The first portion is movable in a first tightening direction and the second portion is movable in a second tightening direction to move the upper to a tightened state. The first portion is also movable in a first slack direction and the second portion is also movable in a second slack direction to move the upper to a slack condition. The article of footwear also includes a cord lock operable in a locked state to restrict movement of the first portion in a first slack direction and to restrict movement of the second portion in a second slack direction. The cord lock is further operable in an unlocked state to allow the first portion to move in a first slack direction and to allow the second cord to move in a second slack direction. Additionally, the article of footwear also includes a second cord including a first portion received by the cord lock and a second portion forming a cinching grip positioned away from the cord lock. The second cord is operable to place the first cord under tension to move the first portion in the first tightening direction and the second portion in the second tightening direction when a predetermined amount of force is applied to the tightening grip.

Implementations of the disclosure may include one or more of the following optional features. In some examples, the article of footwear further includes a release cord operable to move the cord lock from the locked state to the unlocked state. Here, the release cord may include a release catch located remotely from the cord lock. The tightening grip and the release grip may be disposed adjacent to each other. Alternatively, the tightening grip and the release grip may be spaced apart from each other. Additionally or alternatively, the tightening grip may be located closer to a forefoot region of the upper than the release cord or the tightening grip may be located closer to a heel region of the upper than the release cord. In other examples, the tightening grip may be disposed proximate an ankle opening of the upper.

In some configurations, the cord lock is disposed on a surface of the upper. In other configurations, the cord lock may be disposed on the heel area of the upper. The article of footwear may also include a sole structure including an insole and an outsole, with the cord lock disposed within the insole. The cord lock may be received within the cavity of the insole. Alternatively, the cord lock may be opposite the outsole or may be in contact with the outsole. Additionally, the article of footwear may include a midsole disposed between the upper and the insole. Here, the cord lock may be received within the cavity of the insole. In some examples, the cord lock is opposite the midsole. The cord lock may also be in contact with the midsole, attached to the midsole, or attached to the insole. The article of footwear may also include a midsole attached to the upper. Alternatively, a midsole may be disposed between the insole and the outsole or a midsole may be disposed between the cord lock and the outsole.

Another aspect of the present disclosure provides an article of footwear including a first strand and an upper defining an interior space. The first cord is movable in a tightening direction to move the upper to a tightened state and a loosening direction to move the upper to a loosened state. The article of footwear also includes a cord lock operable in a locked state to restrict movement of the first cord in a slack direction and operable in an unlocked state to allow movement of the first cord in the slack direction. The article of footwear also includes a sole structure attached to the upper and including a cavity in which the cord is received and at least one channel extending from the cavity to an exterior of the sole structure, the first cord extending from the cord lock within the cavity to the exterior of the sole structure via the at least one channel.

Implementations of the disclosure may include one or more of the following optional features. In some examples, the article of footwear further includes a tightening grip operable to move away from the upper in a first direction to move the first cord in a tightening direction. The article of footwear may further include a release grip operable to move away from the upper in a second direction to move the cord lock from the locked state to the unlocked state, the release grip being separate from the tightening grip. The cord lock may be disposed away from the tightening grip and the release grip. Alternatively, the release grip may extend from the upper.

In some implementations, the sole structure includes an insole and an outsole. Here, the insole may comprise a cavity. The cavity may be opposite the outsole or the upper. Additionally or alternatively, when the sole structure includes an insole and an outsole, the article of footwear may include a midsole attached to the upper, the cavity being opposite the midsole. Here, the cord lock may be attached to the midsole.

Yet another aspect of the present disclosure provides an article of footwear including a first strand portion and an upper defining an interior space. The first cord portion is movable in a first tightening direction to move the upper to a tightened state and movable in a first loosening direction to move the upper to a loosened state. The article of footwear also includes a second cord portion movable in a second tightening direction, the second cord portion movable in a second loosening direction when the first cord portion is moved in the first loosening direction. The article of footwear also includes a cord lock operable to be in a locked state and an unlocked state. In the locked state, the cord lock is operable to restrict movement of the first cord portion in a first slack direction and to restrict movement of the second cord portion in a second slack direction. In the unlocked state, the cord lock is operable to allow the first cord portion to move in a first slack direction and to allow the second cord portion to move in a second slack direction. The article of footwear also includes a first cord guide attached to the upper and receiving the first cord portion. The first cord guide includes a first convex inner surface operable to engage the first cord and guide movement of the first cord relative to the upper. A second cord guide is attached to the upper and receives the second cord portion. The second cord guide includes a second convex inner surface operable to engage the second cord and guide movement of the second cord relative to the upper.

Implementations of the disclosure may include one or more of the following optional features. In some configurations, the second strand portion forms a tightening grip that is formed as a loop and is operable to move in a first direction away from the upper to move the second strand portion in a second tightening direction. The article of footwear may further include a release grip operable to move away from the upper in a second direction to move the cord lock from the locked state to the unlocked state. The release catch may be separate from the tightening catch. Alternatively, the first direction may be different from the second direction. Additionally or alternatively, the cord lock may be disposed remotely from the tightening grip and the release grip.

In some examples, the article of footwear also includes a sole structure attached to the upper. In this example, the cord lock may be disposed within the sole structure. The sole structure may include an insole and an outsole. Here, the insole may include a cavity in which the cord lock is disposed. In some examples, the cavity is opposite the outsole or the upper. The article of footwear may also include a midsole attached to the upper, the cavity being opposite the midsole. The cord lock may be attached to the midsole.

In some implementations, the effective length of the second cord portion increases when the second cord portion moves in the second tightening direction. The effective length of the first rope portion may decrease when the first rope portion moves in the first tightening direction. When the first cord portion is moved in the first tightening direction, a portion of the first cord portion may be retracted within the cord lock. A portion of the second cord portion may be retractable within the cord lock when the second cord portion is moved in the second slack direction. The first rope portion and the second rope portion may be parts of the same rope.

In some configurations, at least one of the first cord guide and the second cord guide comprises a substantially C-shape. A first cord guide may be disposed along a medial side of the upper and a second cord guide may be disposed along a lateral side of the upper. Here, the first convex surface may be opposite the inner side, and the second convex surface may be opposite the outer side. Further, the first cord guide may include a first concave surface disposed on an opposite side of the first cord guide from the first convex surface, and the second cord guide may include a second concave surface disposed on an opposite side of the second cord guide from the second convex surface. The first concave surface may be opposite the lateral side and the second concave surface opposite the medial side. Additionally or alternatively, the first concave surface and the second concave surface are opposite in a direction extending across the upper between the medial side and the lateral side.

Drawings

The drawings described herein are for illustration purposes only of selected configurations and are not intended to limit the scope of the present disclosure.

FIG. 1 is a top perspective view of an article of footwear having an upper in a tightened state according to the principles of the present disclosure;

FIG. 2 is a top perspective view of the article of footwear of FIG. 1, illustrating the upper in a relaxed state;

FIG. 3 is a partial cross-sectional view taken along line 3-3 of FIG. 1, illustrating the pull cord moving in a tightening direction;

FIG. 4 is a partial cross-sectional view taken along line 4-4 of FIG. 2, showing the pull cord moving in a slack direction;

FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. 1, showing the pull cord moving in a tightening direction in response to pulling of the tightening grip;

FIG. 6 is a cross-sectional view taken along line 6-6 of FIG. 2, showing the pull cord moving in a slack direction in response to pulling the slack grip;

FIG. 7 is a top perspective view of an article of footwear having an upper in a tightened state according to the principles of the present disclosure;

FIG. 8 is a rear elevational view of the article of footwear of FIG. 7, showing a first conduit receiving a portion of the pull cord moving in the tightening direction;

FIG. 9 is a cross-sectional view taken along line 9-9 of FIG. 8, illustrating the first conduit accommodating the gathering of the pull cord as the pull cord moves in the tightening direction;

FIG. 10 is a rear elevational view of the article of footwear of FIG. 7, showing a first conduit receiving a portion of the pull cord moving in a slack direction;

FIG. 11 is a cross-sectional view taken along line 11-11 of FIG. 10, showing a portion of the pull cord received by one of the first conduits being generally taut as the pull cord moves in a slack direction;

FIG. 12 is a cross-sectional view taken along line 12-12 of FIG. 10 showing one of the first conduits having an inner diameter greater than an outer diameter of the pull cord;

FIG. 13 is a cross-sectional view taken along line 13-13 of FIG. 7, showing first and second conduits that receive respective portions of the pull cord as the pull cord moves in the tightening direction in response to pulling of the tightening grip;

FIG. 14 is a cross-sectional view taken along line 14-14 of FIG. 13, showing a portion of the pull cord received by the second conduit being substantially taut as the pull cord is moved in a tightening direction;

FIG. 15 is an alternative cross-sectional view taken along line 14-14 of FIG. 7, showing a first conduit and a second conduit receiving respective portions of the pull cord as the pull cord moves in a slack direction in response to pulling the slack grip;

FIG. 16 is a cross-sectional view taken along line 16-16 of FIG. 15, illustrating the second conduit accommodating bunching of the pull cord as the pull cord moves in a slack direction;

FIG. 17 is a top perspective view of an article of footwear having a locking device movable between a locked state to limit movement of a pull cord and an unlocked state to allow movement of the pull cord, according to the principles of the present disclosure;

FIG. 18 is an exploded view of the lockout device of FIG. 17 showing a housing and a locking member of the lockout device;

FIG. 19 is a partial top cross-sectional view of the locking device of FIG. 17 showing the housing with a portion removed to expose a locking member slidably disposed within the housing and with the locking member in a locked position;

FIG. 20 is a partial top cross-sectional view of the locking device of FIG. 17 showing the housing with a portion removed to expose a locking member slidably disposed within the housing and with the locking member in an unlocked position;

FIG. 21 is a partial cross-sectional view taken along line 21-21 of FIG. 17, showing the locking device disposed between the outsole and the insole when the locking device is biased in the locked condition;

FIG. 22 is a partial cross-sectional view taken along line 21-21 of FIG. 17, showing the locking device disposed between the outsole and the insole when the locking device is in an unlocked condition;

FIG. 23 is a partial cross-sectional view taken along line 21-21 of FIG. 17, showing the locking device disposed between the outsole and the insole and a release mechanism operable to transition the locking device from a locked state to an unlocked state upon application of a force to the release mechanism;

FIG. 24 is a top perspective view of an article of footwear having a locking device movable between a locked state to restrict movement of a pull cord and an unlocked state to allow movement of the pull cord, according to the principles of the present disclosure;

FIG. 25 is a top view of the locking device of FIG. 24 showing the housing of the locking device receiving the first and second portions of the pull cord;

FIG. 26 is a sectional view taken along line 26-26 of FIG. 25, showing the spool, ratchet mechanism and pawl supported by the housing of the locking device;

FIG. 27 is a partial top cross-sectional view of the locking device of FIG. 25 showing a portion of the housing removed and the first pawl engaged with the teeth of the ratchet mechanism when the locking device is in the unlocked condition;

FIG. 28 is a partial top cross-sectional view of the locking device of FIG. 26 showing a portion of the housing removed and the first pawl disengaged from the teeth of the ratchet mechanism when the locking device is in the unlocked condition;

FIG. 29 is a top perspective view of an article of footwear having a locking device movable between a locked state to restrict movement of a pull cord and an unlocked state to permit movement of the pull cord, according to the principles of the present disclosure;

FIG. 30 is an exploded view of the locking device of FIG. 29 showing the housing and spool adapted to be received within the housing and having a first channel configured to collect a first portion of the pull cord and a second channel configured to collect a second portion of the pull cord;

FIG. 31 is a top perspective view of the locking device of FIG. 29 showing the ratchet mechanism having a plurality of teeth and the first pawl biased into engagement with the plurality of teeth of the ratchet mechanism to operate the locking device in a locked condition;

FIG. 32 is a top view of the housing of the lockout device of FIG. 29 showing a feed slot and an arcuate aperture formed through the housing, the feed slot cooperating with the arcuate aperture to allow a release wire to pass under the housing;

FIG. 33 is a partial top view of the locking device of FIG. 31 showing the locking device in a locked condition when the first pawl is engaged with the plurality of teeth of the ratchet mechanism;

FIG. 34 is a partial top view of the locking device of FIG. 31 showing the release mechanism operable to transition the locking device from the locked state to the unlocked state upon application of a force to the release mechanism to disengage the first pawl from the plurality of teeth of the ratchet mechanism;

FIG. 35 is a top perspective view of an article of footwear having a locking device movable between a locked state to restrict movement of a pull cord and an unlocked state to allow movement of the pull cord, according to the principles of the present disclosure;

FIG. 36 is a cross-sectional view taken along line 36-36 of FIG. 35, showing the pull cord moved in a tightening direction in response to pulling of the loop tie tightening segment of the pull cord;

FIG. 37 is an alternative cross-sectional view taken along line 36-36 of FIG. 35, showing the pull cord moving in a slack direction in response to application of a release force to the release wire;

FIG. 38 is a partial top view of the upper of the article of footwear of FIG. 35 illustrating a first lacing pattern operatively connected to a first lace segment of the upper and a second lacing pattern operatively connected to a second lace segment of the upper;

FIG. 39 is a partial top view of the upper of the article of footwear of FIG. 35, illustrating the closing distance defined by the lateral edge and the medial edge of the throat opening defined by the upper;

FIG. 40 is a partial top cross-sectional view of the outsole of the article of footwear of FIG. 35 supporting the locking arrangement of FIGS. 29-34;

FIG. 41 is a partial top cross-sectional view of the outsole of the article of footwear of FIG. 35 supporting the locking arrangement of FIGS. 17-23;

FIG. 42 is a top perspective view of an article of footwear having a locking device movable between a locked state to restrict movement of a pull cord and an unlocked state to allow movement of the pull cord, according to the principles of the present disclosure;

FIG. 43 is an exploded view of the article of footwear of FIG. 42, showing the insertion insole inserted into the interior space defined by the upper and the outsole attached to the upper;

FIG. 44 is a top view of the article of footwear of FIG. 42, illustrating a first lacing pattern of a first lace segment extending from the locking device and a second lacing pattern of a second lace segment extending from the locking device and operatively connected to the first segment;

FIG. 45 is a bottom view of the insole of the article of footwear of FIG. 42, showing a cavity and a plurality of passageways formed through the bottom surface of the insole for receiving a locking device and routing a pull cord through the insole;

FIG. 46 is a cross-sectional view taken along line 46-46 of FIG. 42, illustrating the first and second drawstrings moving in a tightening direction in response to pulling the first drawstring away from the article of footwear;

FIG. 47 is an alternative cross-sectional view taken along line 46-46 of FIG. 42, showing the first and second pull cords moving in a slack direction in response to application of a release force to the release wire;

FIG. 48 is a top perspective view of an article of footwear having a locking device movable between a locked state to restrict movement of a pull cord and an unlocked state to allow movement of the pull cord, according to the principles of the present disclosure;

FIG. 49 is a top perspective view of the article of footwear of FIG. 48 showing a pull cord having a lateral side lace segment and a medial side lace segment that are operable to move the upper from a relaxed state to a tightened state when the pull cord is moved in a tightening direction;

FIG. 50 is a bottom perspective view of the article of footwear of FIG. 48, illustrating the sole structure removed from the upper to expose a locking device disposed on a bottom surface of the midsole;

FIG. 51 is an alternative illustration of the article of footwear of FIG. 48, showing a slack grip operable to transition the locking device from the locked state to the unlocked state, the slack grip being generally aligned with a tightening grip operable to move the upper from the slack state to the tightened state;

FIG. 52 is a top plan view of the pattern of the upper of the article of footwear of FIG. 48 in a relaxed state;

FIG. 53 is a top plan view of the pattern of the upper of the article of footwear of FIG. 48 in a tightened state;

FIG. 54 is a bottom view of the insole of the article of footwear of FIG. 48, showing the cavity and the plurality of passageways formed through the insole for receiving the locking device and routing the drawstring through the insole;

FIG. 55 is a top perspective view of an article of footwear having a locking device movable between a locked state to restrict movement of a pull cord and an unlocked state to permit movement of the pull cord, according to the principles of the present disclosure;

FIG. 56 is a perspective view of the article of footwear of FIG. 55;

FIG. 57 is a top view of a pattern of an upper formed from a combination of plastic and non-plastic materials of the article of footwear of FIG. 55;

FIG. 58 is a top perspective view of an article of footwear having a locking device movable between a locked state to restrict movement of a pull cord and an unlocked state to allow movement of the pull cord, according to the principles of the present disclosure;

FIG. 59 is a perspective view of the article of footwear of FIG. 58;

FIG. 60 is a top view of a pattern of an upper formed from a combination of plastic and non-plastic materials of the article of footwear of FIG. 58;

FIG. 61 is a top perspective view of an article of footwear having a locking device movable between a locked state to restrict movement of a pull cord and an unlocked state to allow movement of the pull cord in accordance with the principles of the present disclosure;

FIG. 62 is a perspective view of the article of footwear of FIG. 61;

FIG. 63 is a top view of a pattern of an upper formed from a combination of plastic and non-plastic materials of the article of footwear of FIG. 61;

FIG. 64 is a top perspective view of an article of footwear having a locking device movable between a locked state to limit movement of a pull cord and an unlocked state to allow movement of the pull cord, according to the principles of the present disclosure;

FIG. 65 is a perspective view of the article of footwear of FIG. 64;

FIG. 66 is a top view of a pattern of an upper formed from a combination of plastic and non-plastic materials of the article of footwear of FIG. 64;

FIG. 67 is a top view of a locking device movable between a locked state to limit movement of the pull cord and an unlocked state to allow movement of the pull cord in accordance with the principles of the present disclosure;

FIG. 68 is an exploded view of the lockout device of FIG. 67 showing a housing and a locking member of the lockout device;

FIG. 69 is a top view of the locking device of FIG. 67, showing the housing with the cover removed to expose a locking member slidably disposed within the housing and with the locking member in a locked position;

FIG. 70 is a top view of the locking device of FIG. 67 showing the housing with the cover removed to expose a locking member slidably disposed within the housing and with the locking member in an unlocked position; and

FIG. 71 is a rear perspective view of an article of footwear incorporating the locking device of FIG. 67 at a heel region thereof.

Corresponding reference characters indicate corresponding parts throughout the drawings.

Detailed Description

Example configurations will now be described more fully with reference to the accompanying drawings. Example configurations are provided so that this disclosure will be thorough and will fully convey the scope of the disclosure to those skilled in the art. Numerous specific details are set forth such as examples of specific components, devices, and methods to provide a thorough understanding of the configurations of the present disclosure. It will be apparent to one skilled in the art that specific details need not be employed, that example configurations may be embodied in many different forms and that specific details and example configurations should not be construed as limiting the scope of the disclosure.

The terminology used herein is for the purpose of describing particular example configurations only and is not intended to be limiting. As used herein, a noun that is not specified to be singular or plural may be intended to include plural unless the context clearly indicates otherwise. The terms "comprises" and "comprising" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. Unless specifically stated as an order of execution, the method steps, processes, and operations described herein are not to be construed as necessarily requiring their execution in the particular order described or illustrated. Additional or alternative steps may be used.

When an element or layer is referred to as being "on," "engaged to," "connected to," "attached to," or "coupled to" another element or layer, it may be directly on, engaged, connected, attached or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," directly engaged to, "" directly connected to, "directly attached to," or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship between elements (e.g., "between" and "directly between," "adjacent" and "directly adjacent," etc.) should be understood in a similar manner. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms, as used herein, do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example configurations.

The details of one or more implementations of the disclosure are set forth in the accompanying drawings and the description below. Other aspects, features, and advantages will be apparent from the description and drawings, and from the claims.

Referring to fig. 1-6, in some implementations, an article of footwear 10 is provided, and the article of footwear 10 includes an upper 100, a sole structure 200 attached to the upper 100, and a tightening mechanism 300, the tightening mechanism 300 operable to move the upper 100 between a tightened state (fig. 1) and a relaxed state (fig. 2). Article of footwear 10 may be divided into one or more portions. Each portion may include a forefoot portion 12, a midfoot portion 14, and a heel portion 16. The forefoot portion 12 may correspond with the toes and the joints connecting the metatarsals with the phalanges of the foot. The midfoot portion 14 may correspond with the arch area of the foot and the heel portion 16 may correspond with a rear portion of the foot including the calcaneus bone. Footwear 10 may include a lateral side 18 and a medial side 20, with lateral side 18 and medial side 20 corresponding with opposite sides of footwear 10 and extending through

portions

12, 14, 16, respectively.

Upper 100 includes an interior surface that defines an interior space 102 configured to receive and secure a foot to support the foot on sole structure 200. An ankle opening 104 in heel 16 may provide access to interior space 102. For example, the ankle opening 104 may receive the foot to secure the foot within the void 102 and facilitate entry and removal of the foot from the interior void 102. In some examples, one or more fasteners 106 extend along upper 100 to adjust the fit of interior space 102 around the foot and to accommodate entry and removal of the foot into and out of interior space 102. For example, tightening fastener 106 closes the interior space 102 around the foot by tying upper 100, while loosening fastener 106 releases upper 100, thereby allowing interior space 102 to open to allow the foot to be removed from interior space 102. Upper 100 may include apertures, such as eyelets, and/or other engagement features, such as a fabric or meshed loop for receiving fastener 106. Fastener 106 may be operatively connected to tightening mechanism 300 to automatically move upper 100 between a tightened state (fig. 1) and a relaxed state (fig. 2) when the tightening mechanism is moved between corresponding ones of the tightened state and the relaxed state.

The upper 100 may include a tongue portion 110, the tongue portion 110 extending between the interior space 102 and the fastener 106. Upper 100 may be formed from one or more materials that are stitched or adhesively bonded together to form interior space 102. Suitable materials for the upper may include, but are not limited to, textiles, foam, leather, and synthetic leather. The materials may be selected and positioned to impart properties of durability, air permeability, abrasion resistance, flexibility, and comfort.

In some implementations, sole structure 200 includes an outsole 210 and an insole 220 arranged in a layered configuration. For example, the outsole 210 engages the ground during use of the shoe 10, and the insole 220 is disposed between the upper 100 and the outsole 210. In some examples, sole structure 200 may also incorporate additional layers, such as a sockliner 216 or an inner liner, which sockliner 216 or inner liner may be positioned within interior space 102 of upper 100 to receive a plantar surface of a foot to enhance the comfort of article of footwear 10. In some examples, a sidewall 230 (e.g., wall 230) of the insole 220 extends between the upper 100 and the outsole 210 and at least partially surrounds a cavity 240 (fig. 5 and 6) located between the upper 100 and the outsole 210.

In some examples, the outsole 210 includes a ground-engaging surface 212 and an opposing inner surface 214. Outsole 210 may be attached to upper 100 via insole 220. For example, the sidewall 230 of the insole 220 may extend from the perimeter of the outsole 210 and may be attached to the upper 100. The outsole 210 generally provides wear resistance and traction with respect to the ground and may be formed of one or more materials that impart durability and wear resistance, as well as enhance traction with respect to the ground. For example, rubber may form at least a portion of the outsole 210.

The insole 220 may include a bottom surface 222 and a footbed (foot) 224 disposed on an opposite side of the insole 220 from the bottom surface 222. Stitching or adhesive may secure the insole 220 to the upper 100. Further, the insole 220 may be attached to a midsole (not shown) disposed generally between the upper 100 and the insole 220. The footbed 224 is contoured to conform to the contour of the bottom surface of the foot (e.g., the bottom of the foot). In some examples, the sockliner 216 or liner may be disposed on the footbed 224 under the foot within at least a portion of the interior space 102 of the upper 100. One or more polymer foam materials may form the sidewalls 230 to provide resilient compressibility to mitigate ground reaction forces when subjected to an applied load. In some examples, sidewall 230 extends through

portions

12, 14, and 16 of footwear 10 between inner surface 214 of outsole 210 and upper 100.

In some implementations, the tightening mechanism 300 includes a pull cord 302 that is movable in a tightening direction 304 to move the tightening mechanism 300 to a tightened state and in a loosening direction 306 to move the tightening mechanism 300 to a loosened state. In some examples, the drawstring 302 is a continuous loop extending between a first end 308 and a second end 312, the first end 308 operatively connected to a tightening grip 310 at an attachment location 309, the second end 312 operatively connected to a slack grip 314 at an attachment location 313 and also operatively connected to the fastener 106, wherein the tightening grip 310 is attached to the upper 100 in the heel portion 16 and the slack grip 314 is attached to the upper 100 (e.g., the tongue portion 110) in the midfoot portion 14. For example, second end 312 may be attached to fastener 106 in a region adjacent to loose grip 314 such that when cord 302 is placed under tension, a force is applied to fastener 106 via cord 302, thereby causing fastener 106 to constrict upper 100 around the wearer's foot. The pull cord 302 may extend through a locking device or cord lock 350 disposed in the sole structure 200 between the tightening grip 310 and the loosening grip 314, thereby defining a first effective length 318 between the locking device 350 and the tightening grip 310 and a second effective length 320 between the locking device 350 and the loosening grip 314.

The draw string 302 may be highly smooth and/or may be formed from one or more fibers having a low modulus of elasticity and high tensile strength. For example, the fibers may comprise high modulus polyethylene fibers having a high strength to weight ratio and low elasticity. Additionally or alternatively, the cords 302 may be formed from molded monofilament polymer and/or braided steel with or without other lubricious coatings. In some examples, the rope 302 includes multiple strands of strand material braided together.

Drawstrings 302 may be routed through various channels or sheets formed by upper 100 and sole structure 200. In some implementations, the outsole 210 and the insole 220 cooperate to provide a channel for routing a portion of the drawstring 302 adjacent to the locking device 350, while the upper 100 defines a channel for routing a portion of the drawstring 302 to the

ends

308, 312 and the fastener 106, wherein the

ends

308, 312 are operatively connected to a respective one of the tightening grip 310 and the loosening grip 314. For example, lateral side 18 and medial side 20 of upper 100 may each define a channel between an inner surface and an outer surface thereof for guiding a portion of drawstring 302 along second length 320. Similarly, upper 100 may define a channel along the heel portion for guiding a portion of drawstring 302 along first length 318. In some configurations, a first length 318 of the drawstring 302 is routed through the channels provided by the outsole 210 and the insole 220 and the outer channels along the outer surface of the upper 100 in the heel portion 16. For example, a textile material may be attached to an outer surface of upper 100 to define a sleeve or channel for guiding and closing a portion of pull cord 302 that extends from sole structure 200 and is operatively connected to tightening grip 310 at first end 308. In some examples, the cinch grip 310 integrally forms a sleeve or channel for guiding and closing the portion of the pull cord 302 extending from the sole structure 200 along the first length 318.

Referring to FIG. 1, when a pulling force 322 is applied to tightening grip 310 to pull tightening grip 310 away from upper 100, pull cord 302 may be moved in tightening direction 304 to tighten fastener 106, and thus move upper 100 to a tightened state. For example, once a foot is received by interior space 102 and supported on sole structure 200, upper 100 may be automatically tightened by applying tensile force 322 to tightening grip 310 to ensure proper fit of interior space 102 around the foot without requiring manual lacing or tightening of other fasteners to tighten upper 100. Fig. 3 provides a cross-sectional view taken along line 3-3 of fig. 1, which illustrates movement of the drawstring 302 along the tightening direction 304 along the inner surface 214 of the outsole 210 through the locking device 350. Referring to fig. 5, a cross-sectional view taken along line 5-5 in fig. 1 illustrates movement of the pull cord 302 in the tightening direction 304 to cause the first length 318 of the pull cord 302 to increase and the second length 320 to decrease. Here, the reduction in second length 320 is operated to tension fastener 106, thereby tightening and tightening upper 100 around the foot such that the foot is secured within interior space 102 while being supported on sole structure 200. That is, as second length 320 is attached to fastener 106, decreasing the effective length of second length 320 causes a tensioning force to be exerted on fastener 106, thereby causing fastener 106 to cinch and tighten upper 100 around the foot.

In some examples, the desired fit of the interior space 102 around the foot is adjustable based on the magnitude of the pulling force 322 applied to the cinching grip 310. For example, increasing the magnitude of tensile force 322 may cause pull cord 302 to move further in tightening direction 302 such that tightening of fastener 106 along upper 100 is enhanced to achieve a more snug fit of interior space 102 around the foot. Additionally or alternatively, the fit of the interior space 102 around the foot may be adjusted based on the period of time that the pulling force 322 is applied to the cinching grip 310. For example, having the pulling force 322 applied to the cinch catch 310 for a longer period of time may cause the pull cord 302 to move an additional distance in the cinching direction 304, thereby achieving a more snug fit of the interior space 102 around the foot.

Referring to FIG. 2, when a pulling force 324 is applied to the slack grip 314, the pull cord 302 may be moved in the slack direction 306 to pull the slack grip away from the upper 100 to slacken the fastener 106 and thereby move the upper 100 to a slack state. For example, when upper 100 is in the tightened state of FIG. 1, upper 100 is automatically loosened by applying a pulling force 324 on loose grip 314, and thus internal space 102 is opened, to facilitate removal of the foot from footwear 10, without the need to untie the lace or loosen one or more fasteners to loosen upper 100. Fig. 4 provides a cross-sectional view taken along line 4-4 of fig. 2, which illustrates movement of the drawstring 302 through the locking device 350 along the inner surface 214 of the outsole 210 in the loosening direction 306. Referring to fig. 6, a cross-section taken along line 6-6 of fig. 2 shows the draw cord 302 moving in the slack direction 306 to cause the first length 318 of the draw cord 302 to decrease and the second length 320 to increase. Here, the increase in second length 320 allows fastener 106 to relax to facilitate transitioning upper 100 from a tightened state to a relaxed state, allowing the foot to be removed from interior space 102 through ankle opening 104.

In some implementations, the inner surface 214 of the outsole 210 defines a receiving area 215, the receiving area 215 receiving the locking device 350 therein. In some configurations, the receiving area 215 is disposed in the heel 16 of the article of footwear 10. In other configurations, the receiving area 215 is disposed in the forefoot portion 14 of the article of footwear 10. Receiving area 215 may also be disposed at a location that overlaps both heel portion 16 and forefoot portion 14 of footwear 10. In some examples, the bottom surface 22 of the insole 220 and the inner surface 214 of the outsole 210 define a cavity 240 therebetween and the locking device 350 is disposed within the cavity 240. Other implementations may include a locking device 350 disposed on upper 100 along one of lateral side 18, medial side 20, or at heel 16 along the rear of footwear 10.

The locking device 350 is operable between a locked state, in which the locking device 350 restricts movement of the pull cord 302 in the slack direction 306, and an unlocked state, in which the pull cord 302 is permitted to move in both the slack direction 306 and the take-up direction 304. In some configurations, the locking device 350 is biased to be in a locked state. In these configurations, the locking device 350 may include a release mechanism 352, the release mechanism 352 operable to transition the locking device 350 from the locked state to the unlocked state. For example, a force can be applied to the release mechanism 352 to transition the locking device 350 from the locked state to the unlocked state.

In some implementations, the locking device 350 allows the pull cord 302 to move in the tightening direction 304 when the locking device 350 is in the locked state. This arrangement allows the pull-cord 302 to be moved in the take-up direction 304 each time a pulling force 322 is applied to the take-up grip 310, while restricting movement of the pull-cord 302 in either the take-up direction 304 or the relax direction 306 when the pulling force 322 is released. This allows the interior space 102 around the foot to be gradually tightened until the desired fit is achieved. In these implementations, when a pulling force 324 is applied to the release catch 314, the locking device 350 must transition from the locked state to the unlocked state to allow the pull cord 302 to move in the slack direction 306. In other words, when a pulling force 324 is applied to the slack grip 314, movement of the pull cord 302 in the slack direction 306 is restricted before the locking device 350 is in the unlocked state.

In other implementations, the locking device 350 also limits movement of the pull cord 302 in the tightening direction 304 when the locking device 350 is in the locked state. In this arrangement, with the locking device 350 in the locked state, the pull cord 302 does not move in the take-up direction 304 when a pulling force 322 is applied to the take-up grip 310, and the pull cord 302 does not move in the relax direction 306 when a pulling force 324 is applied to the relax grip 314. Thus, to move upper 100 from the relaxed state to the tightened state, locking device 350 must first transition from the locked state to the unlocked state to effect movement of pull cord 302 in tightening direction 304 before tension 322 is applied to tightening grip 310. Similarly, to move the upper 100 from the tightened state to the relaxed state to facilitate removal of the foot from the shoe, the locking device 350 must transition from the locked state to the unlocked state to effect movement of the pull cord 302 in the relaxed direction 306 before a pulling force 423 is applied to the slack grip 314.

Referring to fig. 7-16, in some embodiments, an article of footwear 10a includes an upper 100a, a sole structure 200 attached to the upper 100a, and a tightening mechanism 300, the tightening mechanism 300 operable to move the upper 100a between a tightened state (fig. 8 and 13) and a relaxed state (fig. 10 and 14). In view of the substantial similarity in structure and function of the footwear 10 with respect to footwear 10a of the associated components, like reference numerals are used hereinafter and in the drawings to refer to like components and like reference numerals containing letter suffixes are used to refer to those components that have been modified.

Sole structure 200 may include an outsole 210 and an insole 220 arranged in a layered configuration. The outsole 210 includes an inner surface 214, the inner surface 214 being disposed on an opposite side of the outsole 210 from the ground engaging surface 212, while the insole 220 includes a bottom surface 222, the bottom surface 222 being disposed on an opposite side of the insole 22 from the footbed 224. A sockliner 216 or liner is received within the interior space 102a on the footbed 224.

Upper 100a is formed of one or more flexible materials to form interior space 102a, and one or more fasteners 106 extending along upper 100a may be operatively connected to a tightening mechanism to adjust the fit of interior space 102a around the foot to accommodate entry and removal of the foot. The tightening mechanism 300 includes a pull cord 302, the pull cord 302 extending between a first end 308 and a second end 312, the first end 308 being operatively connectable to a tightening grip 310 at one or more corresponding attachment locations 309, and the second end 312 being operatively connectable to a slack grip 314 at one or more corresponding attachment locations 313 and to the fastener 106. For example, the second end 312 may be attached to the fastener 106 in an area adjacent to the slack grip 314 such that when the drawstring 302 is placed under tension, a force is applied to the fastener 106 via the string 302, causing the fastener 106 to tighten the upper 100a around the wearer's foot in a manner similar to that described above with respect to the article of footwear 100.

The draw cord 302 may include a continuous loop defining a first length 318 between the locking device 350 and the tightening grip 310 and a second length 320 between the locking mechanism 350 and the loosening grip 314. Movement of the drawstring 302 in a tightening direction 304 causes the upper 100a to move to a tightened state to close the interior space 102a around the user's foot, and movement of the drawstring 302 in a loosening direction 306 causes the upper 100a to move to a loosened state to loosen the fit of the interior space 102a around the wearer's foot. The locking device 350 may be received by the receiving region 215 on the inner surface 214 of the outsole 210 and may be enclosed within a cavity 240 defined by the bottom surface 222 of the insole 220 and the inner surface 214 of the outsole. In some examples, the locking device 350 is biased in a locked state to limit movement of the pull cord 302 in both the tightening direction 306 and the loosening direction 304. In other examples, the locking device 350 allows the pull cord 302 to move only in the slack direction 306. The locking device 350 may include a release mechanism or cord 352 configured to transition the locking device 350 from the locked state to the unlocked state, thereby allowing the pull cord 302 to move in both

directions

304 and 306 as described above with respect to the article of footwear 10.

In some implementations, the first conduit 160 encircles a portion of the pull cord 302 along the first length 318 when the pull cord 302 is moved relative to the first conduit 160. After movement of the pull cord 302 in the tightening direction 304, the first conduit 160 operates to accommodate the gathering of the pull cord 302. Fig. 7 shows a shoe 10a, which shoe 10a includes a pair of first conduits 160, each of the pair of first conduits 160 receiving a respective portion of the drawstring 302 along a first length 318 and disposed on a heel end of the upper 100. While the example of fig. 7 includes a pair of first conduits 160 attached to the exterior of upper 100, other examples may include first conduits 160 received in channels formed within upper 100 that conceal first conduits 160. The first conduit 160 may be formed of one or more of the following materials: the one or more materials impart flexibility, durability, and reduce friction between the pull cord 302 and the interior surface of the first conduit 160 when the pull cord 302 is moved relative to the first conduit 160 or within the first conduit 160. In some examples, an interior surface of the first conduit 160 is coated to reduce friction relative to the pull cord 302.

Additionally or alternatively, the second conduit 170 may encircle a portion of the pull cord 302 along the second length 320 as the pull cord 302 is moved relative to the second conduit 170. The second conduit 170 is operable to accommodate the gathering of the pull cord 302 after movement of the pull cord in the slack direction 306. Fig. 7 also shows a shoe 10a that includes a pair of second conduits 170, each of the pair of second conduits 170 receiving a respective portion of the drawstring 302 along the first length 320. For example, one of the second conduits 170 extends along the lateral side 18 of the upper 100a, while another of the second conduits 170 extends along the medial side 20 of the upper 100. Second conduit 170 may be concealed within a channel formed within upper 100a along a respective one of lateral side 18 and medial side 20. Alternatively, at least one conduit 170 of the second conduits 170 may be attached to the exterior of the upper 100 a. The second conduit 170 may be formed from one or more materials: the one or more materials impart flexibility and durability while reducing friction between the pull cord 302 and the inner surface of the second conduit 170 as the pull cord 302 moves relative to the second conduit 170. In some examples, the inner surface of the second conduit 170 is coated to reduce friction against the pull cord 302.

FIG. 8 provides a rear perspective view of footwear 10a of FIG. 7, illustrating upper 100a transitioning to a tightened state in response to a tensile force 322 applied to tightening grip 310. The drawstring 302 may extend along the first length 318 through one or more channels (e.g., the outsole 210 and/or the insole 220) formed through the sole structure 200 and out of the sole structure 200 through the opening 280 formed through the sole structure. A pair of first conduits 160 may each encircle a respective portion of the pull cord 302 along the first length 318. Although fig. 8 illustrates first conduits 160, the first conduits 160 each define a length that extends along the heel end of the upper 100a, at least one of the first conduits 160 may extend through the opening 280 into the sole structure 200. The pull cord 302 may be fastened to the cinch catch 310 adjacent the first end 308 at two attachment locations 309 by stitching or other suitable fastening technique.

When the locking device 350 is in the unlocked state, or when the locking device 350 is in the locked state to otherwise allow the pull cord 302 to move in the tightening direction 304, the pull cord 302 moves in the tightening direction 304 in response to the application of a pulling force 322 to the tightening catch 310. Movement of cord 302 in a tightening direction 304 causes upper 100 to move to a tightened state, thereby serving to close interior space 102a around the foot. As with the shoe 10 of fig. 1-6 described above, movement of the pull cord 302 in the tightening direction 304 causes the first length to increase and the second length 320 to decrease (shown in fig. 13). The first conduits 160 are each operable to accommodate the accumulation of the pull cord 302 along the first length 318 once the first length 318 is increased (i.e., caused by movement of the pull cord 302 along the tightening direction 304) and when the force applied to the tightening grip 310 is removed. Without using the first conduit 160 to accommodate the gathering of the draw cord 302, the increase in the first length 318 may cause the draw cord 302 to become tangled and/or to be prone to catching on features such that the draw cord 302 is inhibited from moving in a responsive manner and fluidly along either of the

directions

304 and 306 as desired.

Fig. 9 provides a partial cross-section taken along line 9-9 of fig. 8, illustrating the accommodation of a gathering of the pull cord 302 by one of the first conduits 160 after the pull cord 302 is moved in the tightening direction 304 to account for an increase in the first length 318 when the force applied to the tightening grip 310 is removed. The first conduit 160 includes an inner diameter 162, the inner diameter 162 being greater than an outer diameter 303 of the pull cord 302 to receive a portion of the pull cord 302 therein along a first length 318 and to accommodate a gathering of the received portion of the pull cord 302. Thus, the associated length of the gathered portion of the drawstring 302 received by the first conduit 160 is greater than the length of the first conduit 160.

FIG. 10 provides a rear perspective view of the shoe 10a of FIG. 7, with the upper 100a transitioning to a relaxed state in response to a pulling force 324 applied to the slack grip 310 to move the pull cord 304 in the slack direction 306 when the locking device 350 is in an unlocked state. Movement of the cord 302 in the slack direction 306 causes the upper 100a to move to a slack condition for relaxing the fit of the interior space 102a around the foot, as compared to movement of the cord 302 in the tightening direction 304 to orient the article of footwear 10a toward the tightened state of FIG. 8. For example, FIG. 10 illustrates a tongue portion 110 of the upper 100a, the tongue portion 110 moving away from the ankle opening 104 to increase the size of the interior space 102a to facilitate, for example, removal of a foot from the footwear 10 a. As with the shoe 10 of fig. 1-6 described above, movement of the drawstring 302 in the loosening direction 306 causes the first length 318 to decrease as the second length 320 increases (as shown in fig. 14). As the first length 318 decreases during movement of the pull cord 302 in the slack direction 306, any previous gathering of the pull cord 302 received by the first conduit 160 that occurred when the upper 100 was in the tightened state gradually disappeared until the corresponding portion of the pull cord 302 received by the first conduit 160 was substantially taut. Fig. 11 provides a partial cross-sectional view taken along line 11-11 of fig. 10, which illustrates that a portion of the pull cord 302 received by one of the first conduits 160 is substantially taut when the first length 318 is reduced by movement of the pull cord 302 in the slack direction 306. Fig. 12 provides a cross-sectional view taken along line 12-12 of fig. 10, illustrating the first conduit 160 having an inner diameter 162, the inner diameter 162 being greater than an outer diameter 303 of the pull cord 302 such that the inner diameter 162 accommodates bunching of the pull cord 302 as the first length 318 increases after the pull cord is moved in the tightening direction 302 (fig. 8 and 9).

FIG. 13 provides a cross-sectional view taken along line 13-13 of FIG. 7, illustrating upper 100a transitioning into a tightened state in response to a pulling force 322 applied to tightening grip 310. Drawstring 302 may extend along second length 320 through one or more channels formed through sole structure 200 (e.g., outsole 210 and/or insole 220) and along lateral side 18 and medial side 20 of upper 100 a. Although fig. 13 illustrates second conduits 170 defining a length extending along medial side 20 of upper 100a, at least one of second conduits 170 may extend into sole structure 200. The drawstring 302 may be secured to the slack grip 314 adjacent the second end 312 at one or more attachment locations 313 by stitching or other suitable fastening techniques.

When the locking device 350 is in the unlocked state, or the draw cord 302 is otherwise allowed to move in the take-up direction 304 while the locking device 350 is in the locked state, the draw cord 302 moves in the take-up direction 304 in response to a pulling force 322 applied to the take-up grip 310. Movement of cord 302 in tightening direction 304 causes upper 100a to move to a tightened state to enclose interior space 102a around the foot. As with the shoe 10 of fig. 1-6 described above, movement of the pull cord 302 in the tightening direction 304 causes the first length 318 to increase (as shown in fig. 8) and the second length 320 to decrease. This reduction in second length 320 may result in the portion of pull cord 302 along second length 320 being substantially taut while tightening fastener 106 to move upper 100a into a tightened state.

Fig. 14 provides a partial cross-sectional view taken along line 14-14 of fig. 13, illustrating: when the second length 320 is reduced with the pull cords 302 moving in the tightening direction 304, the portion of the second pull cord 302 received by one of the second conduits 170 is substantially taut along the interior side 20 of the upper 100 a. Like the first conduit 160, the second conduit 170 also defines an inner diameter 172, the inner diameter 172 being greater than the outer diameter 303 of the pull cord 302 to accommodate the gathering of the pull cord when the pull cord 302 transitions to movement in the slack direction 306 causing the second length 320 to increase (fig. 15 and 16).

FIG. 15 provides an alternative cross-sectional view taken along line 13-13 of FIG. 7, which illustrates upper 100a transitioning to a relaxed state in response to a pulling force 324 applied to slack grip 314. As with the shoe 10 of fig. 1-6 described above, movement of the pull cord 302 in the loosening direction 306 causes the second length 320 to increase to allow the fastener 106 to loosen and thereby facilitate transitioning of the upper 100a from the tightened state to the loosened state such that the foot may be more easily removed from the interior space 102 a. As the second length 320 increases, the second conduits 170 each operate to accommodate the gathering of the draw cord 302 along the second length 320 after the draw cord 302 moves in the slack direction 306 and the release force applied to the slack grip 314 is removed. Without using the second conduit 170 to accommodate the gathering of the drawstring 302, the increase in the second length 320 may cause the drawstring 302 to become tangled and/or to tend to jam against features of the article of footwear 10a such that the drawstring 302 is inhibited from moving in a responsive manner and smoothly along either of the

directions

304 and 306 as desired.

Fig. 16 provides a partial cross-sectional view taken along line 16-16 in fig. 15, which illustrates that after the drawstring 302 is moved in the slack direction 306 (i.e., after the second length 320 is increased and the force applied to the slack grip 314 is removed), the gathering of the drawstring 302 is accommodated by one of the second conduits 170 along the interior side of the upper 100 a. The second conduit 170 includes an inner diameter 172 that is larger than the outer diameter 303 of the pull cord 302 to receive a portion of the pull cord 302 therein along the second length 320 and to accommodate the gathering of the received portion of the pull cord 302. Thus, the associated length of the gathered portion of the drawstring 302 received by the second conduit 170 is greater than the length of the first conduit 170.

Referring to fig. 17-23, in some implementations, article of footwear 10b includes an upper 100b, a sole structure 200b attached to upper 100b, and a tightening mechanism 300, tightening mechanism 300 operable to move upper 100b between a tightened state (fig. 21) and a relaxed state (fig. 22). In view of the significant similarity in structure and function of the components associated with article of footwear 10 with respect to article of footwear 10b, like reference numerals will be used hereinafter and in the drawings to identify like components, while like reference numerals, including the letter suffixes, will be used to identify those components that have been modified.

Sole structure 200b may include an outsole 210b and an insole 220b arranged in a layered configuration. The outsole 210b includes an inner surface 214b disposed on an opposite side of the outsole 210b from the ground engaging surface 212, while the insole 220b includes a bottom surface 222b disposed on an opposite side of the insole 220b from the footbed 224. A sockliner 216 or liner is received within the interior space 102b above the footbed 224.

Upper 100b may be formed from a flexible material forming upper 100 of fig. 1-6 to form interior space 102b and transition between a tightened state and a relaxed state to adjust the fit of interior space 102b around the foot. A fastener 106 extending along upper 100b may be operatively connected to tightening mechanism 300 for automatically moving upper 100b between a tightened state and a loosened state to accommodate entry into and removal from footwear 10 b. The tightening mechanism 300 includes a pull cord 302 extending between a first end 308 and a second end 312, wherein the first end 308 is operatively connected to a tightening grip 310 at one or more corresponding attachment locations 309 and the second end 321 is operatively connected to a slack grip 314 at one or more corresponding attachment locations 313. For example, the second end 312 may be attached to the fastener 106 in an area proximate the slack grip 314 such that when the cord 302 is under tension, a force is applied to the fastener 106 via the cord 302, thereby causing the fastener 106 to constrict the upper 100b about the wearer's foot in a manner similar to that described above with respect to the article of footwear 10.

The draw cord 302 may include a continuous loop defining a first length 318 disposed between the locking device or cord lock 350b and the cinch catch 310 and a second length 320 disposed between the locking mechanism 350b and the slack catch 314. Movement of the pull cord 302 in a tightening direction 304 moves the upper 100b to a tightened state to close the interior space 102b about the user's foot, and movement of the pull cord 302 in a loosening direction 306 moves the upper 100b to a loosened state to loosen the fit of the interior space 102b about the user's foot.

In some implementations, the shoe 10b includes at least one of the first conduits 160 and/or at least one of the second conduits 170 in fig. 7-16, the first and

second conduits

160, 170 each being configured to receive and surround a portion of the drawstring 302 along a respective one of the first and

second lengths

318, 320 as the drawstring 302 moves relative to the

conduits

160, 170. As shown in fig. 9, the first conduit 160 is configured to accommodate the gathering of the pull cord 302 along a first length 318 that increases as the pull cord 302 moves in the tightening direction 304; fig. 14 shows a portion of the pull cord 302 that is received by the second catheter 170 that is substantially taut along a second length 320, the second length 320 decreasing while the pull cord 302 is moving in the tightening direction 304. Conversely, when movement of the pull cord 302 in the slack direction 304 decreases the first length 318 and increases the second length 320, fig. 11 shows the portion of the pull cord 302 received by the first conduit 160 that is substantially taut along the decreased first length 318, and fig. 16 shows the second conduit 170 accommodating the gathering of the pull cord 302 along the increased second length 320. As described above with reference to the shoe 10a of fig. 7-16, the

conduits

160, 170 may each define a respective

inner diameter

162, 172 that is greater than an outer diameter 303 of the pull cord 302 to accommodate bunching of the pull cord 302 as the pull cord 302 moves in a corresponding one of the tightening direction 304 and the loosening direction 306. Additionally, the

conduits

160, 170 may be formed with properties that impart flexibility and durability while reducing friction between the pull cord 302 and the respective interior surfaces of the

conduits

160, 170 during relative movement by the pull cord 302. In some examples, an interior surface of at least one of the

conduits

160, 170 is coated to reduce friction with the pull cord 302.

The locking device 350b may be disposed between the outsole 210b and the insole 220b of the shoe 10b and may be biased into a locked state to limit movement of the cord 302 in at least the slack direction 306. The release mechanism 352b may transition the locking device 350b from the locked state to the unlocked state, thereby allowing the pull cord 302 to move in both

directions

304, 306. For example, the release mechanism 352b may include a release wire or cord 352b, the release wire or cord 352b operable to transition the locking device 350b from the locked state to the unlocked state when the release wire 352b is pulled. The release wire 352b may extend from a first end 354b attached to the locking device 350b through a passage formed by the upper 100b to a second end 356b exposed from the upper 100b to allow a user to grasp and pull the release wire 352b to move the locking device 350b from the locked state to the unlocked state. In some examples, the second end 356b of the release cord 352b includes a loop and/or gripping feature positioned away from the locking device 350b to allow a user to grasp and pull the release cord 352b when it is desired to move the locking device 350b to and/or release the locking device 350b from the unlocked state. Fig. 17 shows the second end 356b of the release wire 352b positioned adjacent the slack grip 314 such that the pulling force 324 may be subsequently applied to the slack grip 314 once the release wire 352b moves the locking device 350b to the unlocked state. In other examples, the second end 356b of the release cord 352b may be disposed near other areas of the footwear 10b, such as at or near: ankle opening 104, cinch grip 310, lateral side 18 or medial side 20 of upper 100c, or sole structure 200 c.

In some implementations, the locking device 350b includes a housing 360 and a locking member or lock member 380 slidably disposed within the housing 360. Fig. 18 provides an exploded view of the locking device 350b of fig. 17, showing the locking member 380 removed from the housing 360. Housing 360 defines a length extending between a first end 361 and a second end 363, with first end 361 being opposite a heel end of footwear 10b and second end 363 being opposite a toe end of footwear 10b when housing 360 is disposed within cavity 240b of sole structure 200 b. The housing 360 includes a base portion 362, the base portion 362 having a cord receiving surface 364 and a sole engaging surface 366 (fig. 21-23), the sole engaging surface 366 being disposed on an opposite side of the base portion 362 from the cord receiving surface 364 and opposite the bottom surface 222b of the insole 220b or sockliner 216. The housing 360 further includes a cover portion 368, the cover portion 368 opposing the cord receiving surface 364 of the base portion 362 to define a locking member cavity 370 therebetween, the locking member cavity 370 configured to receive the locking member 380 and the draw cord 302. In some configurations, the locking member cavity 370 is bounded by a first engagement surface 371 and a second engagement surface 372, the first engagement surface 371 and the second engagement surface 372 converging toward one another such that the locking member cavity 370 is associated with a wedge-shaped configuration that tapers toward the first end 361 of the housing 360. Thus, first and second engagement surfaces 371, 372 include respective sidewalls of housing 360 that converge toward one another and extend between cover portion 368 and cord receiving surface 364 of base portion 362 to define locking member cavity 370.

A continuous loop of draw cord 302 extends through the locking member lumen 370 and includes a first portion 321 extending along a first engagement or locking surface 371 and a second portion 323 extending along a second engagement or locking surface 372. The draw cord 302 (e.g., the first portion 321 and the second portion 323) exits from the first end 361 of the housing 360 to define a first length 318 between the locking device 350b and the take-up grip 310 and exits from the second end 363 of the housing 360 to define a second length 320 between the locking device 350b and the slack grip 314.

In some implementations, the locking member 380 includes a first locking surface 381 and a second locking surface 382, the first locking surface 381 opposing the first engagement surface 371 of the housing 360 and the second locking surface 382 opposing the second engagement surface 372 of the housing 360 when the locking member 380 is disposed within the locking member cavity 370 of the housing 360. In some examples, the first and second lock surfaces 381, 382 converge toward one another. Additionally or alternatively, the first lock surface 381 may be substantially parallel to the first engagement surface 371, and the second lock surface 382 may be substantially parallel to the second engagement surface 372. The biasing member 375 (e.g., a spring) may include a first end 374 and a second end 376, the first end 374 being attached to the housing 360 and the second end 376 being attached to the first end 384 of the locking member 380 to attach the locking member 380 to the housing 360.

In some implementations, the locking member 380 is slidably disposed within the housing 360 and is movable between a locked position (fig. 19) associated with the locked state of the locking device 350b and an unlocked position (fig. 20) associated with the unlocked state of the locking device 350 b. In some examples, the release mechanism 352 (e.g., release wire 352b) is operable to move the locking member 380 from a locked position (fig. 19) to an unlocked position (fig. 20). In some configurations, the locking member 380 includes a protrusion 386 extending from an end of the locking member 380 opposite the first end 384. As shown in fig. 19, the first end 354b of the release wire 352b may be attached to the tab portion 386 of the locking member 380. The tab portion 386 can include a retention feature 388, the retention feature 388 operable to engage one or more retention features 369 associated with the housing 360 to retain the locking device 350b in the unlocked state, and the tab portion 386 can be disposed on an end of the locking member 390 opposite the biasing member 375, as will be described in detail below.

Fig. 19 provides a partial cross-sectional view of the locking device 350b of fig. 17 with the cover portion 368 of the housing 360 removed to show the locking member 380 disposed within the locking member cavity 370 of the housing 360 and simultaneously in the locked position. In some examples, the locking member 380 is biased to the locked position. For example, fig. 19 shows the biasing member 375 applying a biasing force (shown in direction 378) to the locking member 380 to urge the first end 384 of the locking member 380 toward the first end 361 of the housing 360, thereby biasing the locking member 380 into the locked position. In the locked position, the locking member 380 limits movement of the draw cord 302 relative to the housing 360 by clamping the first portion 321 of the draw cord 302 between the first locking surface 381 and the first engagement surface 371 and clamping the second portion 323 of the draw cord 302 between the second locking surface 382 and the second engagement surface 372. Thus, when a pulling force 358 is applied to the slack grip 314, the locked position of the locking member 380 restricts movement of the pull cord 302 in the slack direction 306. When the pulling force 358 is applied to the cinch catch 314, the locking member 380 allows movement of the pull cord 302 because this direction causes the pull cord 302 to apply a force to the locking member 380 due to the generally wedge-shaped locking member 380, thereby moving the locking member 380 to the unlocked state. Once the force applied to the cinch catch 322 is released due to the force applied to the lock member 380 by the biasing member 375, the lock member 380 automatically returns to the locked state.

Fig. 20 provides a partial cross-sectional view of the locking device 350b of fig. 17 with the cover portion 368 of the housing 360 removed to show the locking member 380 disposed within the locking member cavity 370 of the housing 360 and in an unlocked position. In some examples, the release cord 352b attached to the tab portion 386 of the lock member 380 is operable to apply a predetermined amount of release force 398 to the lock member 380 to move the lock member 380 relative to the housing 360 away from the first and second engagement surfaces 371, 372. Here, the release force 398 is sufficient to overcome the biasing force 378 of the biasing member 375 to allow the locking member 380 to move relative to the housing 360 such that the clamping of the first portion 321 of the pull cord 302 between the first locking surface 381 and the first engagement surface 371 and the clamping of the second portion 323 of the pull cord 302 between the second locking surface 382 and the second engagement surface 372 are released. In some examples, the biasing force 378 causes the locking member 380 to transition back to the locked position when the release force 398 applied by the release wire 352b is released. Release force 398 may be applied by release wire 352b when a sufficient amount of pulling force 358 is applied to pull release wire 352b away from upper 100b relative to the view of FIG. 17. For example, a user may grasp the second end 356b of the release wire 352b and apply a pulling force 358 to transition the locking member 380 from the locked position to the unlocked position. In one configuration, the release wire 352b is attached to the locking member 380 at an end opposite the biasing member 375, as shown in fig. 19.

In the unlocked position, the locking member 380 allows the pull cord 302 to move relative to the housing 360 by allowing the first portion 321 of the pull cord 302 to move freely between the first locking surface 381 and the first engagement surface and allowing the second portion 323 of the pull cord 302 to move freely between the second locking surface 382 and the second engagement surface 382. In contrast to the locked position of the locking member 380 of fig. 19, which limits movement of the pull cord 302, the unlocked position of the locking member 380 allows movement of the pull cord 302 in both the take-up direction 304 and the slack direction 306 when a pulling

force

322, 324 is applied to the corresponding take-up catch 322 and slack catch 324. As with the shoe 10 of fig. 1-6 described above, movement of the pull cord 302 in the tightening direction 304 causes the second length 320 of the pull cord 302 to decrease to tension the fastener 106 and thereby move the upper 100b to a tightened state to close the interior space 102b about the foot; and movement of pull cord 302 in loosening direction 306 causes second length 320 to increase to allow fastener 106 to relax and thereby facilitate transitioning of upper 100b from a tightened state to a relaxed state such that the foot may be removed from interior space 102 b.

FIG. 21 provides a partial cross-sectional view taken along line 21-21 of FIG. 17, illustrating the lockout device 350b in a locked condition to limit movement of the pull cord 302 in the slack direction 306. The locking device 350b is disposed within the cavity 240b defined by the bottom surface 222b of the insole 220b and the inner surface 214b of the outsole 210 b. More particularly, the bottom surface 366 of the base portion 362 of the housing 360 is in opposing contact with the bottom surface 222b of the insole 220 b. In other examples, the insole 220b may include a hollow area between the footbed 224 and the bottom surface 222b to define a cavity 240b for receiving the locking device 350 b. This example shows the locking member 380 biased into the locked position by the biasing force 378 applied by the biasing member 375.

FIG. 22 provides an alternative partial cross-sectional view taken along line 21-21 of FIG. 17. Fig. 17 shows the locking device 350b in an unlocked state to allow movement of the tension wire 302 in both the tightening direction 304 and the loosening direction 306. When the release mechanism 352 (e.g., release wire 352b) applies a release force 378 to the lock member 380 to overcome the biasing force 378, the lock member 380 may transition from the locked position of fig. 21 to the unlocked position of fig. 22, and thereby cause the lock member 380 to move relative to the housing 360 in a direction away from the first and second engagement surfaces 371, 372 (e.g., toward the toe end of the shoe relative to the view of fig. 22).

The release wire 352b may apply a release force 398 in response to the pulling force 358 applied to the release wire 352b at the second end 356 to pull the release wire 352b away from the upper 100b relative to the view of FIG. 17. In some examples, the release wire 352b is utilized by the retention feature 369 of the housing 360 when the pulling force 358 is applied. The leverage provided by the retention features 369 advantageously allows the release cord 352b to exert a release force 398 on the locking member in a direction opposite to the direction of the biasing force 378 such that the locking member 380 moves relative to the housing 360 away from the engagement surfaces 371, 372. Accordingly, the release wire 352b may be pulled from the upper 100 in a wide range of directions to transition the locking member 380 from the locked position to the unlocked position.

In some examples, at least one of the retention features 369 of the housing 360 engages the retention feature 388 of the lock member 380 when the release force 390 moves the lock member 380 a predetermined distance away from the first and second engagement surfaces 371, 372 of the housing 360. Here, once the release force 390 is released, the engagement between the retention feature 388 of the lock member 380 and the at least one retention feature 369 of the housing is operable to retain the lock member 380 in the unlocked position. After the locking member 380 is moved the predetermined distance and the release force 398 is no longer applied, the biasing force 378 of the biasing member 375 may pull the retention feature 388 of the locking member 380 into engagement with the retention feature 369 of the housing 360.

In some cases, a pulling force 358 associated with the first magnitude may be applied to the release wire 352b to move the locking member 380 away from the engagement surfaces 371, 372 a distance less than the predetermined distance such that the retention features 388, 369 do not engage. In these circumstances, when it is desired to place the pull cord 302 in either the slack direction 306 (e.g., by applying a pulling force 324 to the slack grip 314) or the take-up direction 304 (e.g., by applying a pulling force 324 to the take-up grip 314), a pulling force 358 associated with the first magnitude can be maintained for adjusting the fit of the interior space 102b around the foot. Once the desired fit of the interior space 102b around the foot is achieved, the pulling force 358 may be released to transition the locking member 380 back to the locked position so that movement of the pull cord 302 is restricted and the desired fit may be maintained. In other instances, a pulling force 358 associated with a second magnitude greater than the first magnitude may be applied to the release wire 352b to move the locking member 380 a predetermined distance away from the engagement surfaces 371, 372 to engage the respective retention features 369, 388. In these circumstances, when the pulling force 358 is released, the engagement between the respective retention features 369, 388 can operate to retain the locking member in the unlocked position.

Fig. 23 provides an alternative partial cross-sectional view taken along line 21-21 of fig. 17, which illustrates the retaining feature 388 of the lock member 380 disengaged from the retaining feature 369 of the housing 360 to release the lock member 380 from the unlocked position and then moved to the locked position. A directional pulling force 359 may be applied to the release wire 352b to move the locking member 380 in a direction away from the base portion 362 of the housing 360 and thereby disengage the respective retention features 369, 388. In some examples, the base portion 362 of the housing 360 is in a fixed position relative to the sole structure 200b, and the tab portion 386 of the locking member 380 interacts with the base portion 362 in response to a directional pulling force 359 applied to the release wire 352 b. The interaction between the tab portion 386 and the base portion 362 of the housing 360 may cause the tab portion 386 to bend relative to the lock member 380 and move from a resting state to a flexed state to allow the retention feature 388 disposed on the tab 386 to move from and away from the retention feature 369 associated with the housing 360 such that the biasing force 378 can slidably move the lock member 380 relative to the housing 360 and into a locked position when the directional pulling force 359 is released.

Referring to fig. 24-28, in some implementations, article of footwear 10c includes an upper 100c, a sole structure 200c attached to upper 100c, and a tightening mechanism 300, tightening mechanism 300 operable to move upper 100c between a tightened state and a relaxed state. In view of the substantial similarity in structure and function of the components associated with article of footwear 10 with respect to article of footwear 10c, like reference numerals will be used hereinafter and in the drawings to identify like components, while like reference numerals, including letter suffixes, will be used to identify those components that have been modified.

Sole structure 200c may include an outsole 210c and an insole 220c arranged in a layered configuration. The outsole 210c includes an inner surface 214c disposed on an opposite side of the outsole 210c from the ground engaging surface 212, while the insole 220c includes a bottom surface 222c disposed on an opposite side of the insole 220c from the footbed 224. A sockliner 216 or liner is received within the interior space 102c above the footbed 224.

Upper 100c may be formed from a flexible material forming upper 100 of fig. 1-6 to form interior space 102c and transition between a tightened state and a relaxed state to adjust the fit of interior space 102c around the foot. Fasteners 106 extending along upper 100c may be operatively connected to tightening mechanism 300 for automatically moving upper 100c between a tightened state and a loosened state to accommodate entry into and removal from footwear 10 c. The tightening mechanism 300 includes a pull cord 302 extending between a first end 308 and a second end 312, wherein the first end 308 is operatively connected to a tightening grip 310 at one or more corresponding attachment locations 309 and the second end 321 is operatively connected to a slack grip 314 at one or more corresponding attachment locations 313. Additionally, second end 312 may be attached to fastener 106 in an area proximate loose grip 314 such that when cord 302 is under tension, a force is applied to fastener 106 via cord 302, thereby causing fastener 106 to constrict upper 100c around the wearer's foot. The draw cord 302 may include a continuous loop of a first length 318 defined between the locking device 350c and the take-up grip 310 and a second length 320 defined between the locking mechanism 350c and the slack grip 314. Movement of the cord 302 in a tightening direction 304 moves the upper 100c to a tightened state to close the interior space 102c around the foot, and movement of the cord 302 in a loosening direction 306 moves the upper 100c to a loosened state to loosen the fit of the interior space 102c around the foot.

In some implementations, the shoe 10c includes at least one of the first conduits 160 and/or at least one of the second conduits 170 in fig. 7-16, the first and

second conduits

second lengths

318, 320 as the drawstring 302 moves relative to the

conduits

160, 170. As shown in fig. 9, the first conduit 160 is configured to accommodate the gathering of the pull cord 302 along the first length 318 that increases as the tension cord 302 moves in the tightening direction 304; fig. 14 shows a portion of the pull cord 302 that is received by the second catheter 170 that is substantially taut along a second length 320, the second length 320 decreasing while the pull cord 302 is moving in the tightening direction 304. Conversely, when movement of the pull cord 302 in the slack direction 304 decreases the first length 318 and increases the second length 320, fig. 11 shows the portion of the pull cord 302 received by the first conduit 160 that is substantially taut along the decreased first length 318, and fig. 16 shows the second conduit 170 accommodating the gathering of the pull cord 302 along the increased second length 320. As described above with reference to the shoe 10a of fig. 7-16, the

conduits

160, 170 may each define a respective

inner diameter

162, 372 that is greater than the outer diameter 303 of the pull cord 302 to accommodate bunching of the pull cord 302 during movement of the pull cord 302 in the corresponding one of the tightening direction 304 and the loosening direction 306. Additionally, the

conduits

160, 170 is coated to reduce friction with the pull cord 302.

A locking device or cord lock 350c may be disposed between the outsole 210c and the inner bottom 220c of the shoe 10c and may be biased into a locked state to limit movement of the cord 302 in the slack direction 306. In some examples, outsole 210c supports locking device 350 c. Fig. 25 provides a top view of the locking device 350c of fig. 24, showing the housing 360c housing the first portion 321 and the second portion 323 of the pull cord 302 in a continuous loop. The first portion 321 of the pull cord 302 may be adjacent the housing 360c from a first direction 21, and the second portion 323 of the pull cord 302 may be adjacent the housing 360c from a second direction 22 opposite the first direction 21.

In some configurations, the locking device 350c allows the pull cord 302 to move in the tightening direction 304 while in the locked state. The release mechanism 352c may transition the locking device 350c from the locked state to the unlocked state, thereby allowing the pull cord 302 to move in both

directions

304, 306. For example, the release mechanism 352c may include a release wire operable to transition the locking device 350c from the locked state to the unlocked state when the release wire 352c is pulled. The release wire 352c may extend from a first end 354c attached to the locking device 350c through the passageway formed by the upper 100b to a second end 356c exposed from the upper 100c to allow a user to grasp and pull the release wire 352c to move the locking device 350c from the locked state to the unlocked state. In some examples, the second end 356c of the release wire 352c includes a band and/or gripping features to allow a user to grasp and pull the release wire 352c when it is desired to move the locking device 350c to the unlocked state. Fig. 24 shows the second end 356c of the release wire 352c located near the slack grip 314 such that the pulling force 324 may be subsequently applied to the slack grip 314 once the release wire 352c moves the locking device 350c to the unlocked state. In other examples, the second end 356c of the release wire 352c may be disposed near other areas of the footwear 10c, such as at or near: ankle opening 104, cinch grip 310, lateral side 18 or medial side 20 of upper 100c, or sole structure 200 c.

The locking device 350c includes a housing 360c and a spool 450 supported by the housing 360 c. Fig. 26 provides a cross-sectional view taken along line 26-26 of fig. 25, illustrating the support of the spool 450 to the housing 360c to allow the spool 450 to rotate relative to the housing 360c about an axis of rotation 456 454. In some examples, the spool 450 rotates in a first direction 404 (fig. 27) relative to the housing 360c when the pull-cord 302 is moved in the take-up direction 304 and rotates in an opposite second direction 406 (fig. 28) when the pull-cord 302 is moved in the slack direction 306. Spool 450 includes a first channel 451 and a second channel 452, with first channel 451 configured to collect a first portion 321 of pull cord 302 and second channel 452 configured to collect a second portion 323 of pull cord 302. First portion 321 may be adjacent to first channel 451 of spool 450 from first direction 21 (fig. 25), and second portion 323 may be adjacent to second channel 452 of spool 450 from second direction 22 (fig. 25). The first direction 21 and the second direction 22 may be opposite to each other. The locking device 350c further includes a ratchet mechanism 460, the ratchet mechanism 460 being supported for common rotation with the spool 450 about the rotational axis 456, and the ratchet mechanism 460 having a plurality of teeth 462 positioned circumferentially about the axis of the ratchet mechanism 460.

In some implementations, the locking device 350c includes a first pawl 464 supported by the housing 360c and a first pawl spring 466 configured to bias the first pawl 464 into engagement with the plurality of teeth 462 of the ratchet mechanism 460. The first pawl spring 466 may bias the first pawl 464 about a pawl rotation axis 468 that extends substantially parallel to the rotation axis 456 of the spool 450. The engagement between the first pawl 464 and the plurality of teeth 462 operates the locking device 350c to the locked state to limit movement of the pull cord 302 in the slack direction 306. Fig. 27 provides a top view of the locking device 350c in a locked condition, wherein the first pawl 464 engages the teeth 462 of the ratchet mechanism 460 to selectively limit rotation of the spool 450 in the second direction 406 (fig. 28) to limit movement of the pull cord 302 in the slack direction 306. In the example shown, when the first pawl 464 engages the teeth 462, the plurality of teeth 462 are angled to allow the spool 450 to rotate in the first direction 404, thereby allowing the pull-cord 302 to move in the take-up direction 304 in response to the pulling force 322 applied to the take-up grip 310. In some examples, as the spool 450 rotates in the first direction 404, the first channel 451 of the spool 450 collects the first portion 321 of the pull-cord 302 while the second channel 452 of the spool 450 simultaneously releases the second portion 323 of the pull-cord 302. In other examples, when the spool 450 rotates in the first direction 404, the first channel 451 releases the first portion 321 of the pull-cord 302 while the second channel simultaneously collects the second portion 323 of the pull-cord 302.

As with the shoe 10 of fig. 1-6 described above, movement of the pull cord 302 in the tightening direction 304 causes the second length 320 of the pull cord 302 to decrease to tension the fastener 106 and thereby move the upper 100c to a tightened state to close the interior space 102a about the foot. Accordingly, as upper 100c is moved to a tightened state, pull cord 302 is incrementally moved in tightening direction 304 during each successive engagement between first pawl 464 and tooth 462, thereby incrementally increasing the tension applied to fastener 106 to tighten interior space 102c about the foot.

In some configurations, the first end 354c of the release wire 352c is attached to the first pawl 464 to allow the release wire 352c to selectively disengage the first pawl 464 from the teeth 462 of the ratchet mechanism 460 when a predetermined force 355 (fig. 28) is applied to the release wire 352 c. For example, the user may grasp the second end 356c of the release wire 352c and apply a predetermined force 355 to disengage the first pawl 464 from the teeth 462 of the ratchet mechanism 460. FIG. 28 provides a top view of the locking device 350c in an unlocked state in response to the release wire 352c selectively disengaging the first pawl 464 from the teeth 462 of the ratchet mechanism 460 when the predetermined force 355 is applied to the release wire 352 c. When the locking device 350c is in the unlocked state, wherein the first pawl 464 is disengaged from the teeth 462 of the ratchet mechanism 460, the spool 450 is permitted to rotate in the second direction 406 such that the pull cord 302 rotates in the slack direction 306 when the pulling force 324 is applied to the slack grip 314. In some examples, as the spool 450 rotates in the second direction 406, the first channel 451 of the spool 450 collects the first portion 321 of the pull-cord 302 while the second channel 452 of the spool 450 simultaneously releases the second portion 323 of the pull-cord 302. In other examples, the first channel 451 releases the first portion 321 of the pull-cord 302 as the spool 450 rotates in the second direction 406, while the second channel simultaneously collects the second portion 323 of the pull-cord 302. Like shoe 10 of fig. 1-6, movement of pull cord 302 in loosening direction 306 causes second length 320 to increase to allow fastener 106 to loosen and thereby facilitate transitioning of upper 100b from the tightened state to the loosened state such that the foot may be removed from interior space 102 a.

Referring to fig. 26 and 28, in some implementations, the locking device 350c further includes a second pawl 470 associated with a second pawl spring 472, the second pawl spring 472 configured to bias the second pawl 470 into engagement with a control surface 474 associated with the spool 450 to allow the spool 450 to rotate in the second direction 406 when the first pawl 464 is disengaged from the teeth 462 of the ratchet mechanism 460. Although the example of fig. 26 shows control surface 474 corresponding to an intermediate wall of spool 450 between first channel 451 and second channel 452, control surface 474 may correspond to an upper wall of spool 450 opposite ratchet mechanism 450 or a lower wall of spool 450 disposed on an opposite side of spool 450 from the upper wall opposite ratchet mechanism 460. The second pawl 470 may be rotatably supported by the first pawl 464. When the second pawl 470 is engaged with the control surface 474, the second pawl 470 operates to control the speed of rotation of the spool 450 in the second direction 406 such that the portions 321, 323 of the pull cord 302 do not become tangled when being collected (e.g., wound) into or released (e.g., unwound) from the corresponding ones of the first channel 451 and the second channel 452 of the spool 450 during rotation in the second direction 406. In some configurations, when the predetermined force 355 applied by the release wire 352c is released, the second pawl 470 remains engaged with the control surface 474 and the first pawl 464 remains disengaged from the teeth 462 of the ratchet mechanism 460 to thereby maintain the locking device 350c in the unlocked state. In these configurations, the second pawl 470 may disengage from the control surface 474 and the first pawl 464 may rotate into engagement with the teeth 462 in response to the spool 450 transitioning to rotate in the first direction 404. For example, when the cinch catch 310 is applied with the pulling force 322, the locking device 350c may be selectively shifted back to the locked state such that the spool 450 rotates in the first direction 404 as the pull cord 302 is moved in the cinching direction. In other configurations, when the predetermined force 355 applied by the release wire 352c is released, the first pawl 464 is biased into engagement with the teeth 462 of the ratchet mechanism 460 and the second pawl 470 is disengaged from the control surface 474, thereby automatically transitioning the locking device 350c to the locked state. Referring back to fig. 27, when the locking device 350c is operable in the locked state as the first pawl 464 engages the teeth 462 of the ratchet mechanism 460, the second pawl 470 disengages from the control surface 474.

Referring to fig. 29-34, in some implementations, an article of footwear 10d includes an upper 100d, a sole structure 200d attached to the upper 100d, and a tightening mechanism 300d operable to move the upper 100d between a tightened state and a relaxed state. In view of the fact that the components associated with article of footwear 10 are substantially similar in structure and function to article of footwear 10d, like reference numerals will be used hereinafter and in the drawings to identify similar components, while using like reference numerals including letter suffixes to identify those components that have been modified.

Sole structure 200d may include an outsole 210d and an insole 220d arranged in a layered configuration. The outsole 210d includes an inner surface 214d disposed on an opposite side of the outsole 210d relative to the ground engaging surface 212, while the insole 220d includes a bottom surface 222d disposed on an opposite side of the insole 220d relative to the footbed 224. A sockliner 216 or liner is received within the interior space 102d above the footbed 224.

Upper 100d may be formed from a flexible material that forms upper 100 of fig. 1-6 to form an interior space 102d and to transition between a tightened state and a loosened state for adjusting the fit of interior space 102d around the foot. Fastener 106 extending along upper 100d may be operatively connected to tightening mechanism 300 for automatically moving upper 100d between a tightened state and a loosened state to adjust for entry into and removal from footwear 10d in a similar manner as described above. The tightening mechanism 300d includes a first pull cord 302d that defines a first length 318d of the tightening mechanism 300d between the locking device 350d and the tightening grip 310 and a second pull cord 502 that defines a second length 320d of the tightening mechanism 300d between the locking device 350d and the slack grip 314. In some examples, the first pull cord 302d has a pair of free ends 308d and 312d that are operably connected to the cinch catch 310 at one or more corresponding attachment locations 309. In other examples, the first pull cord 302d includes a continuous loop that defines the first length 318 d. Similarly, the second pull-cord 502 may include a pair of free ends 508 and 512, the pair of free ends 508 and 512 being operably connected to the slack grip 314 at one or more corresponding attachment locations 309, or the second pull-cord 502 may include a continuous loop defining the second length 320 d. Additionally, ends 508, 512 may be attached to fastener 106 in an area proximate loose grip 314 such that when drawstring 302d is placed under tension, a force is applied to fastener 106 through string 302d, causing fastener 106 to constrict upper 100d around the wearer's foot.

Movement of the first cord 302d in the tightening direction 304 causes the second cord 502 to also move in the tightening direction 504 and thereby cause the upper 100d to move to a tightened state to close the interior space 102d around the wearer's foot. Conversely, movement of the first cord 302d in the loosening direction 306 and movement of the second cord 502 in the corresponding loosening direction 506 moves the upper 100d to a loosened state to loosen the fit of the interior space 102d around the wearer's foot.

The

drawstrings

302d, 502 may be highly smooth and/or formed from one or more fibers having a low modulus of elasticity and high tensile strength. For example, the fibers may comprise high modulus polyethylene fibers having a high strength to weight ratio and very low elasticity. Additionally or alternatively, the

cords

302d, 502 may be formed from molded monofilament polymer and/or braided steel with or without other lubricious coatings. In some examples, the

cords

302d, 502 include multiple strands of material braided together.

In some implementations, the shoe 10d includes at least one of the first conduits 160 and at least one of the second conduits 170 of fig. 7-16, the first and

second conduits

160 and 170 each being configured to receive and encircle portions of the respective drawstrings along the first length 318d of the first drawstring 302d and along the second length 320d of the second drawstring 502 as the

drawstrings

302d and 502 move relative to the

conduits

160, 170. For example, the first conduit 160 may accommodate a gathering of the first pull cord 302d along a first length 318d that increases as the pull cord 302 is moved in the tightening direction 304 (e.g., as illustrated by the pull cord 302 in the conduit 160 of fig. 9), while the second conduit 170 may accommodate a gathering of the second pull cord 502 along a second length 320d that simultaneously decreases during movement of the pull cord 502 in the tightening direction 504. Conversely, as the movement of the

pull cords

302d and 502 in the

slack directions

306 and 506 decreases the first length 318d and increases the second length 320d, the portion of the first pull cord 302d received by the first conduit 160 will be generally taut along the decreased first length 318d (e.g., as illustrated by the pull cord 302 in the conduit 160 of fig. 11), while the second conduit 170 will accommodate the gathering of the second pull cord 502 along the increased second length 320 d. As described above with reference to footwear 10 of fig. 7-16,

conduits

160, 170 may each define a respective

inner diameter

162, 172, with the respective

inner diameter

162, 172 being larger than an outer diameter of

pull cords

302d and 502 to accommodate bunching of

pull cords

302d and 502 during relative movement of

pull cords

302d and 502 in respective ones of tightening

directions

304, 504 and loosening

directions

306, 506. Further, the

conduits

160, 170 may be formed from one or more of the following materials: the one or more materials impart flexibility and durability characteristics while reducing friction between the

pull cord

302d, 502 and the respective interior surface of the

catheter

160, 170 during relative movement of the

pull cord

302d, 502. In some examples, an interior surface of at least one of the

conduits

160, 170 is coated to reduce friction of the

corresponding pull cord

302d, 502.

A locking device or cord lock 350d may be disposed between the outsole 210d and the insole 220d of the shoe 10d and may be biased into a locked condition to limit movement of the

draw cords

302d, 502 in their

respective loosening directions

306, 506. In some examples, outsole 210d supports locking device 350 d. The first pull cord 302d and the second pull cord 502 each approach and pass through the housing 360d of the locking device 350d from opposite directions. In one configuration, housing 360d comprises a generally square shape approximately three inches (3 inches) long by three inches (3 inches) wide and comprises a thickness of approximately one inch (1 inch). In some configurations, the locking device 350d allows movement of the

pull cord

302d, 502 in the tightening

direction

304, 504 when in the locked state. The release mechanism 352d may transition the locking device 350d from the locked state to the unlocked state, thereby allowing movement of the

pull cords

302d, 502 in both

directions

304, 504 and 306, 506. For example, the release mechanism 352d may extend through a passage formed by the upper 100d, i.e., from a first end 354d attached to the locking device 350d to a second end 356d exposed from the upper 100d, to allow a user to grasp and pull the release wire 352d to move the locking device 350d from the locked state to the unlocked state. In some examples, the second end 356d of the release wire 352d includes a loop and/or gripping features to allow a user to grip and pull the release wire 352d when it is desired to move the locking device 350d to the unlocked state. FIG. 29 shows that the second end 356d of the release wire 352d is positioned proximate the slack grip 314 such that a pulling force 324 can be subsequently applied to the slack grip 314 once the release wire 352d has moved the locking device 350d to the unlocked state. In other examples, the second end 356d of the release wire 352d may be disposed proximate to other areas of the footwear 10d, such as at or near the ankle opening 104, the tightening grip 310, the lateral side 18 or the medial side 20 of the upper 100d, or the sole structure 200 d.

Fig. 30 provides an exploded view of the locking device 350d of fig. 29, showing a housing defining a cavity 365 configured to rotatably receive the spool 450d, the first pawl 464d, and the second pawl 470 d. The locking arrangement 350d may include a cover 367 releasably secured to the housing 360d to prevent access to the cavity 365 when the cover 367 is secured to the housing 360d and to allow access to the cavity 365 when the cover 367 is removed from the housing 365. One or more fasteners 70 may extend through the cover 367 and fasten in the housing 360d through threaded holes 72 (fig. 31) to secure the cover 367 to the housing 360 d.

Spool 450d is supported within cavity 365 of housing 360 and is rotatable relative to housing 360 d. In some examples, when the first cord 302d is moved in the take-up direction 304, the spool 450d rotates in a first direction 404 (fig. 31) relative to the housing 360d, and when the second cord 502 is moved in the relax direction 506, the spool 450d moves in an opposite second direction 406 (fig. 31) relative to the housing 360 d. The spool 450d includes a first channel or annular groove 451d configured to collect a portion of the first pull cord 302d and a second channel or annular groove 452d configured to collect a portion of the second pull cord 502. The housing 360 may support a plurality of cord retainers 482 such that the

ends

308d, 312d, 508, 512 of the

pull cords

302d, 502 each extend through a respective one of the cord retainers 482.

The spool 450d can include one or more anchor slots 483 formed through the dividing wall separating the

channels

451d, 452d for attaching each of the

pull cords

302d, 502 to the spool 450 d. For example, the first pull cord 302d may be attached to one of the anchor slots 483 at a midpoint between the first end 308d and the second end 312d, and the second pull cord 502 may be attached to the other of the anchor slots 483 at a midpoint between the first end 508 and the second end 512. The locking device 350d also includes a ratchet mechanism 460d associated with the spool 450d and having a plurality of teeth 462 positioned circumferentially about an axis of the ratchet mechanism 460 and projecting radially inward from the ratchet mechanism 460. In some implementations, the ratchet mechanism 460d is integrally formed on the inner peripheral wall of the spool 450d such that the plurality of teeth 462 project radially inward from the

channels

451d, 452 d. In other examples, the ratchet mechanism 460d is supported for common rotation with the spool 450 d.

In some implementations, the first pawl 464d includes a first pawl shaft 560, the first pawl shaft 560 configured to support the first pawl 464d within the housing 360d to allow the first pawl 464d to rotate relative to the housing 360d about a first pawl rotation axis 562 (fig. 31-33). The first pawl spring 466d may be operatively connected to the first pawl shaft 560 and the retaining wall 490 disposed within the cavity 365 of the housing 360d to bias the first pawl 464d in the first direction 564 (fig. 31 and 32) about the first pawl rotational axis 562. When the spool 450d is received by the cavity 365 to enclose the first pawl 464d and the retaining wall 490 of the housing 360d, the first pawl rotation axis 562 can be generally parallel to the rotation axis of the spool 450 d. Thus, the first pawl spring 466d can interact with the retaining wall 490 and the first pawl 464 to exert the following biasing forces: the biasing force causes the first pawl 464d to pivot in a first direction 564 about the first pawl rotation axis 562 and into engagement with the plurality of teeth 462d of the ratchet mechanism 460d, thereby causing the locking device 350d to operate in a locked condition to limit movement of the

pull cords

302d, 502 in the

slack directions

306, 506. In some examples, the first pawl 464d includes one or more teeth 465 configured to meshingly engage with the plurality of teeth 462d of the ratchet mechanism 460 d. The retaining wall 490 can define a tactile slot 494 configured to receive one or more tactile domes 484. As described in greater detail below with reference to fig. 31-33, the first detent 464d can engage the tactile dome 484 to provide a clicking or other sound indicating that the spool 450d has changed position relative to the housing 360d and/or that the locking device 350d has transitioned from the locked state to the unlocked state.

Fig. 31 provides a perspective view of the locking device 350d when in a locked state, wherein the first pawl teeth 465 of the first pawl 464d engage the teeth 462d of the ratchet mechanism 460d to selectively limit rotation of the spool 450d in the second direction 406 and thereby limit movement of the

pull cords

302d, 502 in their respective

slack directions

306, 506. The housing 360d defines retention feature slots 492 that are each configured to receive and support a respective one of the cord retainers 482 through which the

ends

308d, 312d of the first cord 302d and the

ends

508, 512 of the second cord 502 extend. In some examples, when the teeth 465 of the first pawl 464d engage the teeth 462d of the ratchet mechanism 460d, the plurality of teeth 462d are angled to allow the spool 450d to rotate in the first direction 404, thereby allowing the first pull cord 302d to move in the take-up direction 304 and the second pull cord 502 to move in the take-up direction 504 in response to the pulling force 322 being applied to the take-up grip 310. Here, as the spool 450d rotates in the first direction 404, the first channel 451d of the spool 450d releases the first pull cord 302d while the second channel 452d of the spool 450d simultaneously collects the second pull cord 502. Thus, movement of the

pull cord

302d, 502 in its tightening

direction

304, 504 increases the first length 318d and decreases the second length 320d to tension the fastener 106 and thereby move the upper 100d to a tightened state to close the interior space 102d around the wearer's foot. Thus, the second cord 502 is incrementally moved in the tightening direction 504 during each successive engagement between the first pawl 464d (e.g., the first pawl teeth 465) and the teeth 462d of the ratchet mechanism 460d to thereby incrementally increase the tension applied to the fastener 106 to thereby tighten the fit of the interior space 102d around the foot as the upper 100d is moved to the tightened state.

Referring to fig. 30 and 31, the second pawl shaft 471 rotatably supports the second pawl 470d and the first pawl 464d to allow the second pawl 470d to rotate about the second pawl rotation axis 473 with respect to both the first pawl 464d and the housing 360 d. The second pawl rotation axis 473 can extend generally parallel to the first pawl rotation axis 562 and the rotation axis of the spool 450 d. In some examples, the second pawl 470d is associated with a second pawl spring 472d that is configured to bias the second pawl 470d into engagement with a control surface 474d associated with the spool 450d to allow the spool 450d to rotate in the second direction 406 when the first pawl 464d is disengaged from the teeth 462d of the ratchet mechanism 460 d.

In some examples, when the predetermined force 355d (fig. 34) is applied to the release wire 352d, the release wire 352d is operatively connected to the anchor post 570 of the first pawl 464d to disengage the first pawl 464d from the teeth 462d of the ratchet mechanism 460 d. When the second pawl 470d is engaged with the control surface 474d, the second pawl 470d operates to control the rotational speed of the spool 450d in the second direction 406 so that it does not become tangled when collecting (e.g., winding) or releasing (e.g., unwinding) from the respective ones of the first channel 451d and the second channel 452 of the spool 450d during rotation in the second direction 406. In some configurations, the second pawl 470d includes two cam surfaces that remain engaged with respective ones of the two control surfaces 474d when the first pawl 464d remains disengaged from the teeth 462d (i.e., when the locking device 350d is operable in the unlocked state). Each control surface 474d may be axially disposed on opposite sides of the ratchet mechanism 460d such that the teeth 462d are disposed between the control surfaces 474d and project radially inward from the control surfaces 474 d.

Fig. 32 provides a top view of the housing 360d showing a pair of mounting

flanges

760, 770 disposed on opposite sides of the housing 360 d. The mounting

flanges

760, 770 may rest on the interior surface 214d of the outsole 210d (or alternatively, over the midsole 217 in the configuration of fig. 42-47 when the insert insole 220f is inserted into the interior space 102f defined by the upper 100 f) to mount the locking device 350d within the sole structure 200 d. Midsole 217 may be any support structure that forms at least a portion of footwear 10f disposed under the foot between outsole 210f and void 102 f. In some examples, an adhesive, such as an adhesive and/or epoxy, may be applied to the contact surfaces of the

flanges

760, 770 and/or the inner surface 214 of the outsole 210 for attaching the housing 360d to the inner surface 214d of the outsole 210 d. Additionally or alternatively, mounting

flanges

760, 770 may define one or more mounting

holes

762, 772 formed therethrough, which one or more mounting

holes

762, 772 are configured to receive fasteners (not shown) for mounting housing 360d to sole structure 200 d.

Fig. 32 shows the housing 360d with the

pawls

462d, 464d, the cords 302d, 502d, and other components of the locking device 350d removed to expose an arcuate channel 571 formed through the housing 360 d. The arcuate channel 571 aligns with the aperture 572 (fig. 33) defined by the anchor post 570 and allows the release wire 352d to pass under the housing 360d and up through the feed slot 774 defined by the mounting flange 770. The mounting flange 770 also defines a cut-out region 773 proximate the feed slot 774 to provide more clearance for the release line 352d (and/or guide tube 325 to enclose the release line 352f of the article of footwear 10f of fig. 42-47) to extend from the housing 350 d. The mounting

flanges

760, 770 may define a lip around the perimeter of the shell 360d such that the shell 360d rises slightly above the under-sole structure 200d (or midsole 217 of shoe 10f of fig. 42-47). Thus, the release wire 352d may extend freely under the housing 360d between the arcuate channel 571 and the feed slot 774. In some examples, the feed slot 774 has curved edges to prevent the release wire 352d from catching on the housing 360d or being constrained by the housing 360 d.

Fig. 33 and 34 each show a top view of the first pawl 462d of the locking device 350 d. The first pawl 467 defines a first receiving surface 467 configured to support a first pawl spring 466d (shown in fig. 30 and 31). The first pawl shaft 560 protrudes from the first receiving surface 467 in a direction substantially perpendicular to the first receiving surface 467. The first pawl shaft 560 may be integrally formed with the first pawl 464 d. The first pawl 462d also defines a second receiving surface 477 configured to support a second pawl spring 472d (shown in fig. 30 and 31). The opening 475 is formed through the second receiving surface 477 and is configured to receive the second pawl shaft 471 (shown in fig. 30 and 31). The anchor post 570 can project away from the receiving

surfaces

467 and 477 in a direction generally parallel to the first pawl axis 560. The anchor post 570 may define an aperture 572 to provide an attachment location for attaching the first end 354d of the release wire 352d to the anchor post 570. The anchor post 570 may be integrally formed with the first detent 464 d.

Referring to fig. 33, when the locking device 350d is in the locked state, the first pawl 462d is biased into engagement with the plurality of teeth 462d of the ratchet mechanism 460 d. Here, the first pawl 464d pivots and rotates in a first direction 564 about the first pawl rotation axis 562 such that the teeth 465 of the first pawl 464d engage the teeth 462d of the ratchet mechanism 460 d. In some examples, the first detent 462d includes a tactile projection 584 that is configured to engage the tactile dome 484 to provide a "click" indicative of an incremental change in position of the spool 450d during each successive engagement between the first detent 464d and the teeth 462 d.

Referring to fig. 34, the first end 354d of the release wire 352d is attached to the anchor post 570 of the first pawl 464d to allow the release wire 352c to selectively disengage the first pawl 464d from the teeth 462d of the ratchet mechanism 460d when the predetermined force 355d is applied to the release wire 352 c. For example, a user may grasp the second end 356d of the release wire 352d and apply a predetermined force 355d to disengage the first pawl 464d from the teeth 462d of the ratchet mechanism 460 d. Here, the predetermined force 355d overcomes the biasing force of the first pawl spring 466d to allow the first pawl 464d to rotate in the second direction 525 about the first pawl rotational axis 562. Additionally, the tactile projection can engage the tactile dome 484 to provide a "click" when the predetermined force 355d moves to the first detent 464d and moves out of engagement with the tooth 462d to transition the locking device 350d to the unlocked state. FIG. 34 illustrates the locking device 350d of FIG. 29 in an unlocked state, the locking device 350d selectively disengaging the first pawl 464d from the teeth 462d of the ratchet mechanism 460d in response to the release wire 352d when the predetermined force 355d is applied to the release wire 352 d. When the locking device 350d is in an unlocked state, wherein the first pawl 464d is disengaged from the teeth 462d of the ratchet mechanism 460d, the spool 450d is permitted to rotate in the second direction 406 to permit the second pull cord 402 to rotate in the slack direction 506 when the pushing force 324 is applied to the slack grip 314. In some examples, as the spool 450d rotates in the second direction 406, the first channel 451d of the spool 450d collects the first pull cord 302d while the second channel 452d of the spool 450d simultaneously releases the second pull cord 502. Accordingly, movement of the second cord 502 in the slack direction 506 increases the second length 320d to allow the fastener 106 to loosen and thereby facilitate transitioning of the upper 100d from the tightened state to the relaxed state such that the foot may be removed from the interior space 102 d.

Referring to fig. 30, the cover 367 of the locking device 350d and the housing 360d may each include an aperture 580 configured to support the first pawl shaft 560 of the first pawl 464 d. The cover 367 and the housing 360d may also each include a corresponding

arcuate channel

574, 571, the corresponding

arcuate channels

574, 571 cooperating to allow the anchor post 570 of the first pawl 464d to freely rotate relative to the housing 360d and the cover 367 when the first pawl 464d is pivoted in the first direction 404 or the second direction 406 about the first pawl rotation axis 562.

With reference to fig. 35-41, in some implementations, an article of footwear 10e includes an upper 100e, a sole structure 200e attached to the upper 100e, and a tightening mechanism 300e operable to move the upper 100e between a tightened state (fig. 36) and a relaxed state (fig. 37). In view of the fact that the components associated with article of footwear 10 are substantially similar in structure and function to article of footwear 10e, like reference numerals will be used hereinafter and in the drawings to identify similar components, while using like reference numerals including letter suffixes to identify those components that have been modified.

Sole structure 200e may include an outsole 210e and an insole 220e arranged in a layered configuration. The outsole 210e includes an inner surface 214e disposed on an opposite side of the outsole 210e relative to the ground engaging surface 212, while the insole 220e includes a bottom surface 222e disposed on an opposite side of the insole 220e relative to the footbed 224. The sockliner 216 or liner may be received within the interior space 102d above the footbed 224.

Upper 100e may be formed from a flexible material forming upper 100 of fig. 1-6 to form an interior space 102e and to transition between a tightened state and a loosened state for adjusting the fit of interior space 102e around the foot. Upper 100e defines an ankle opening 104 in heel 16 to provide access to interior space 102 e. A throat opening 140, corresponding with the instep of the foot, extends between a lateral edge 142 and a medial edge 144 of the upper 100e, i.e., from the ankle opening 104 to an area adjacent the forefoot portion 12. In some examples, upper 100e includes a series of lateral apertures 180 (e.g., eyelets) extending along lateral edge 142 of throat opening 140 and a series of medial apertures 190 (e.g., eyelets) extending along medial edge 144 of throat opening 140 (fig. 36-39). In some implementations, the tightening mechanism 300e includes at least one pull cord 302e that is guided through the

apertures

180, 190 and that is attached to the upper 100e at one or more locations to move the upper 100e between the tightened and loosened states as the tightening mechanism 300e moves between the corresponding ones of the tightened and loosened states. For example, movement of tightening mechanism 300e in a tightened state tightens upper 100e by drawing lateral edge 142 and medial edge 144 toward one another to close or constrict throat opening 140, such that interior space 102e is closed around the user's foot in a similar manner as described above with respect to footwear articles 10-10 d. Here, the pull cord 302e is movable in a tightening direction 304 to move the tightening mechanism 300e to a tightened state. Conversely, movement of tightening mechanism 300e in a relaxed state loosens upper 100e to open interior space 102e for removal of a foot from interior space 102 e. Here, the pull cord 302e is movable in the slack direction 306 to move the take-up mechanism 300e to the slack state. In other configurations, upper 100e may include a loop or other engagement feature in place of

apertures

180, 190.

A plurality of fastening members 106-1, 106-2, 106-3, 106-4, 106-5 may extend across throat opening 140 at various locations between lateral edge 142 and medial edge 144. For example, each fastening member 106-1, 106-2, 106-3, 106-4, 106-5 may extend between a corresponding opposing pair of

apertures

180, 190. The fastening members 106-1, 106-2, 106-3, 106-4, 106-5 may provide cushioning and distraction of the tension applied by the pull cord 302e against the top of the wearer's foot. The fastening members 106-1, 106-2, 106-3, 106-4, 106-5 may also provide aesthetic characteristics by hiding the placement of the drawstring 302e when extending across the throat opening.

In some implementations, the drawstring 302e defines a length extending between a first end 308e (fig. 36-39) and a second end 312e (fig. 36-39), each of the first end 308e and the second end 312e being operatively connected to the upper 100e along one of the medial edge 144 or the lateral edge 142 at corresponding

attachment locations

608 and 612 adjacent the throat opening 140. A locking device or cord lock 350 may be disposed within the midfoot portion 14 of the sole structure 200e, and the cord 302e may extend through the locking device 350 to define a first lace segment 320-1 between a first end 308e of the cord 302e (i.e., at attachment location 608) and the locking device 350, and a second lace segment 320-2 between a second end 312e of the cord 302e (i.e., at attachment location 612) and the locking device 350. Additionally, the drawstring 302e defines a loop tightening segment 318e, which loop tightening segment 318e may extend around the tongue portion 110 proximate where the ankle opening 104 meets the throat opening 140 (i.e., at a location above the instep of the wearer's foot).

The pull cord 302e may be highly smooth and/or formed from one or more fibers having a low modulus of elasticity and high tensile strength. For example, the fibers may comprise high modulus polyethylene fibers having a high strength to weight ratio and very low elasticity. Additionally or alternatively, the cord 302e may be formed from a molded monofilament polymer and/or braided steel with or without other lubricious coatings. In some examples, the cord 302e includes multiple strands of material braided together.

As with the drawstrings 302 of fig. 1-6, drawstring 302e may be routed through various channels or panels formed by upper 100e and sole structure 200 e. In some implementations, the outsole 210e and the insole 220e cooperate to provide access for guiding portions of the cord 302e proximate the locking device 350, while the upper 100e defines access for the lace segments 320-1, 320-2 of the cord 302e to operatively connect (e.g., attach) to the corresponding ends 308e, 312e of the upper 100e at respective ones of the

attachment locations

608, 612, and access for the lace tightening segment 318e to an exposed portion extending around the tongue portion 110. For example, lateral side 18 and medial side 20 of upper 100e may each define a corresponding pathway between the interior and exterior surfaces thereof for guiding portions of drawstring 302e along respective ones of lace segments 320-1, 320-2. These passageways may include a cross-sectional area greater than the diameter of the cord 302e to accommodate the gathering of the cord 302e in a similar manner as described above with reference to the

catheters

160, 170.

Further, the upper 100e may define a passage along the heel portion 16 for guiding a portion of the release mechanism 352e (e.g., a release wire) that transitions the locking device 350 from the locked state to the unlocked state for allowing movement of the pull cord 302e in both

directions

304, 306. For example, the release wire 352 may be pulled to transition the locking device 350 to the unlocked state and may extend from a first end 354e attached to the locking device 350 to a second end 356e exposed from the upper 100e to allow a user to grasp and pull the release wire 350 for moving the locking device 350 from the locked state to the unlocked state. In some examples, the second end 356e of the release wire 352e includes a loop and/or gripping features to allow a user to grasp and pull the release wire 352e when it is desired to move the locking device 350 to and/or release the locking device 350 from the unlocked state. The example shoe 10e illustrates the second end 356e of the release wire 352e attached to the sheath 357 (fig. 36 and 37) and enclosed within the sheath 357 (fig. 36 and 37), which allows a user to apply a release force 358 (e.g., a predetermined force) (fig. 37) to the sheath 357 and/or the second end 356e of the cord 352e to move the locking device 350 to the unlocked state. The sheath 357 may comprise a fabric material that is attached to an exterior surface of the upper 100e so as to define a sleeve or passage for guiding and enclosing the portion of the release wire 352e that extends out of the sole structure 200e and operatively connects the release wire 352e at the second end 356 e. The sleeve or channel defined by the sheath 357 can include an internal lumen or space having a cross-sectional area greater than the outer diameter of the release wire 352e to accommodate gathering of the release wire 352e when the pulling force 358 is released and/or to facilitate movement of the release wire 352e within the passageway. In other examples, the second end 356e of the release line 352e may be disposed proximate to other areas of the footwear 10e, such as at or near the tongue portion 110, the lateral side 18 or the medial side 20 of the upper 100e, or the sole structure 200 e.

In some configurations, when a pulling force 322e is applied to loop strap tightening section 318e to pull loop strap tightening section 318e away from upper 100e, pull cord 302e is able to move in tightening direction 304, thereby drawing lateral side edge 142 and medial side edge 144 of throat opening 140 together, and thereby moving upper 100e to a tightened state. For example, once the foot is received by interior space 102e and supported on sole structure 200e, upper 100e may be automatically tightened by applying tension 322e to lace tightening section 318e to secure the proper fit of interior space 102e around the foot without having to manually tighten a lace or manually tighten other fasteners to tighten upper 100 e. FIG. 36 provides a cross-sectional view taken along line 36-36 of FIG. 35, illustrating movement of the pull cord 302e through the locking device 350 in the tightening direction 304 to decrease the length of the lace segments 320-1, 320-2 of the pull cord 302e and increase the length of the lace tightening segment 318 e. Here, the reduced length of lace segments 320-1, 320-2 is operable to close throat opening 140, thereby tightening and tightening upper 100e around the foot such that the foot is secured within interior space 102e while being supported above sole structure 200 e. As with the pulling force 322 applied to the cinching grip 310 of fig. 1-6, the fit of the interior space 102e around the foot may be adjustable based on the magnitude and/or duration of the pulling force 322e applied to the cinch cinching section 318 e.

In some implementations, at least one first conduit 160e encircles a portion of the pull cord 302e along the cinch section 318e as the pull cord 302e is moved relative to the first conduit 160 e. Here, the first conduit 160e accommodates the gathering of the pull cord 302e as the pull cord 302e moves in the tightening direction 304 in a manner similar to the first conduit 160 of fig. 7-16 (i.e., fig. 8, 9, and 13). For example, FIG. 36 shows first conduit 160e accommodating the gathering of cuff cinching section 318e once tension 322e is released after moving cord 302e in cinching direction 304. However, when the first conduits 160 of fig. 7-16 extend proximate to the heel portion 16, a pair of first conduits 160e of the article of footwear 10e extend along a respective one of the lateral side 18 and the medial side 20 of the upper 100e in a manner similar to the second conduits 170 of fig. 7-16. Without using first conduit 160e to accommodate the gathering of pull cord 302e, once tension 322e is released, the increase in length of loop tightening segment 318e may cause pull cord 302e to become tangled and/or to easily catch on features of shoe 10e such that pull cord 302e may be inhibited from responsively and smoothly moving in either of

directions

304 and 306, if desired.

FIG. 37 provides an alternative cross-sectional view taken along line 36-36 of FIG. 35, which illustrates upper 100e transitioning to a relaxed state in response to a release force 358 applied to release line 352 e. For example, when the locking device 350 is transitioned from the locked state to the unlocked state, the pull cord 302e is allowed to move in the loosening direction 306 as the foot moves and/or the user pulls the tongue portion 110 to loosen the fit of the interior space 102 e. Here, movement of the drawstring 302e in the slack direction 306 increases the length of the segments 320-1, 320-2 to allow the throat opening 140 to open, thereby loosening the upper 100e to facilitate transitioning from the tightened state to the relaxed state such that the foot may be removed from the interior space 102 e. Other configurations of footwear 10e may include one or more second conduits 170 encircling portions of at least one of segments 320-1, 320-2 to accommodate gathering of segments 320-1, 320-2 as they move in relaxation direction 306.

FIG. 38 is a partial top view of the upper 100e illustrating a lacing pattern of the first and second segments 320-1, 320-2 of the drawstring 302e, the drawstring 302e being attached to the upper 100e at its respective attachment locations 608, 610, the

respective attachment locations

608, 612 being disposed adjacent the medial edge 144 of the throat opening 140. In other configurations, at least one of the attachment locations 608, 610 may be disposed adjacent the lateral edge 142 of the throat opening 140. Fastening members 106-1, 106-2, 106-3, 106-4, 106-5 extending across throat opening 140 between corresponding opposing pairs of lateral apertures 180 and medial apertures 190 are shown in phantom lines to provide clarity in depicting the respective lacing patterns of first and second lace segments 320-1 and 320-2. The portion of the segments 320-1, 320-2 extending between the medial edge 142 and the lateral edge 144 across the throat opening 140 may be fed through the fastening members 106-1, 106-2, 106-3, 106-4, 106-5 and concealed by the fastening members 106-1, 106-2, 106-3, 106-4, 106-5.

Fig. 38 illustrates a first lace pattern for a first lace segment 320-1, the first lace segment 320-1 extending along the lateral side 18 of the upper 100e and feeding through a third lateral aperture 180-3, feeding across the throat opening 140 from the lateral edge 142 to the medial edge 144, and feeding through a third medial aperture 190-3 adjacent the medial edge 144. Thereafter, the first lace segment 320-1 is fed along the medial edge 144 of the throat opening 140 from the third medial aperture 190-3 through the upper 100e and out the second medial aperture 190-2, across the throat opening 140 from the medial edge 144 to the lateral edge 142, and through the second lateral aperture 180-2 adjacent the lateral edge 142. Finally, the first lace segment 320-1 is fed through the upper 100e from the second lateral aperture 180-2 and out the first lateral aperture 180-1 along the lateral edge 142 of the throat opening 140, is fed across the throat opening 140 from the lateral edge 142 to the medial edge 142, and is operatively connected to the upper 100e at an attachment location 608 proximate the first medial aperture 190-1 adjacent the medial edge 144. In some examples, the first end 308e of the pull cord 302e associated with the free end of the first lace segment 320-1 includes the following mounting features (e.g., a ball): this mounting feature has a larger diameter than corresponding first medial aperture 190-1 for anchoring first lace segment 320-1 to upper 100e at attachment location 608. However, first lace segment 320-1 may be operatively connected to upper 100e at attachment location 608 using any attachment/fastening technique.

The second lace pattern of the second lace segment 320-2 extends along the medial side 20 of the upper 100e and feeds through a fifth medial aperture 190-5, across the throat opening 140 from the medial edge 144 to the lateral edge 142, and through a fifth lateral aperture 180-5 adjacent the lateral edge 142. Thereafter, the second lace segment 320-2 is fed through the upper 100e from the fifth lateral aperture 180-5 and out the fourth lateral aperture 180-4 along the lateral edge 142 of the throat opening 140, fed across the throat opening 140 from the lateral edge 142 to the medial edge 144, and operatively connected to the upper 100e at attachment locations 612 proximate the fourth medial aperture 190-4 adjacent the medial edge 144. In some examples, the second end 312e of the pull cord 302e associated with the free end of the second lace segment 320-2 includes the following mounting features (e.g., a ball): this mounting feature has a larger diameter than corresponding fourth medial aperture 190-4 for anchoring second lace segment 320-2 to upper 100e at attachment location 612. However, second lace segment 320-2 may be operatively connected to upper 100e at attachment location 612 using any attachment/fastening technique.

In some implementations, the first lacing pattern associated with the first lace segment 320-1 and the second lacing pattern associated with the second lace segment 320-2 are selected such that a total closing distance between a lateral edge 142 and a medial edge 144 of the throat opening 140 according to the first lacing pattern is approximately equal to a total closing distance between a lateral edge 142 and a medial edge 144 of the throat opening 140 according to the second lacing pattern. Further, as drawstring 302e is moved in tightening direction 304, the distance of tightening of first lace segment 320-1 is approximately equal to the distance of tightening of second lace segment 320-2. Thus, the tightening distance of the first lace segment 320-1 is approximately equal to the total closing distance between the lateral edge 142 and the medial edge 144 of the throat opening 140 according to the first lacing pattern, while the tightening distance of the second lace segment 320-2 is approximately equal to the total closing distance between the lateral edge 142 and the medial edge 144 of the throat opening 140 according to the second lacing pattern. Thus, the lacing patterns associated with the first and second lace segments 320-1 and 320-2 of the pull cord 302e may evenly distribute tension across the throat opening when the tightening mechanism 300e is transitioned to the tightened state.

In some implementations, the plurality of fastening members 106-1, 106-2, 106-3, 106-4, 106-5 each define a respective lace location that represents a location at which the first lace segment 320-1 or the second lace segment 320-2 passes between the lateral edge 142 and the medial edge 144 of the throat opening. As used herein, the terms "lace location" and "fastening member" may be used interchangeably. Here, the fastening members 106-1, 106-2, 106-3, 106-4, 106-5 may provide the shoe 10e with an appearance similar to a conventional shoe upper having a conventional lacing.

Referring to FIG. 39, the partial top view of upper 100e illustrates first lace position 106-1, second lace position 106-2, third lace position 106-3, fourth lace position 106-4, and fifth lace position 106-5, with first lace position 106-1, second lace position 106-2, third lace position 106-3, fourth lace position 106-4, and fifth lace position 106-5 extending sequentially from throat opening 140 toward ankle opening 104 at a front or toe end of footwear 10 e. When throat opening 140 is in a relaxed position, lateral edge 142 and medial edge 144 of throat opening 140 are furthest from each other. Lateral edge 142 and medial edge 144 of throat opening 140 are additionally depicted by phantom lines to illustrate the location of

edges

142, 144 when throat opening 140 is in a tightened position and edges 142, 144 are closest to each other. Thus, the lateral edge 142 and the medial edge 144 move a predetermined distance when moving between their respective ones of the relaxed and tightened positions, such that the predetermined distance is associated with the closing distance traveled by each of the

edges

142, 144 when transitioning between the relaxed and tightened positions. In some configurations, first lace position 106-1 may have a first closing distance D1, second lace position 106-2 may have a second closing distance D2, third lace position 106-3 may have a third closing distance D3, fourth lace position 106-4 may have a fourth closing distance D4, and fifth lace position 106-5 may have a fifth closing distance D5. In these configurations, the closure distance between lateral edge 142 and medial edge 144 is approximately twice the total closure distance for the respective lace locations. For example, the total closure distance between lateral side edge 142 and medial side edge 144 at fifth lace position 106-5 is approximately twice fifth closure distance D5. In other words, lateral side edge moves fifth closing distance D5 between the tightened and relaxed positions while medial side edge 144 also moves fifth closing distance D5 between the tightened and relaxed positions.

The tightening distance may refer to the distance each of first strap section 320-1 and second strap section 320-2 moves in tightening direction 304 when the tightening mechanism is transitioned from the relaxed state to the tightened state. In some examples, the tightening distance of each of first lace segment 320-1 and second lace segment 320-2 refers to the amount of the corresponding lace that the locking mechanism collects in response to the application of a pushing force to tightening loop segment 318 e. In some implementations, the tightening distances associated with each of lace segments 320-1, 320-2 are approximately equal to each other when tightening mechanism 300e is in a tightened state. In these implementations, the tightening distance of the first lace segment 320-1 is approximately equal to the total closing distance between the lateral edge 142 and the medial edge 144 of the throat opening according to the first lacing pattern, while the tightening distance of the second lace segment 320-2 is approximately equal to the total closing distance between the lateral edge 142 and the medial edge 144 of the throat opening according to the second lacing pattern.

In some implementations, when tightening mechanism 300e is in the tightened state, the total closing distance between lateral side 142 and medial side 144 of throat opening 140 is equal to twice the sum of first closing distance D1 for first lace position 106-1, second closing distance D2 for second lace position 106-2, and third closing distance D3 for third lace position 106-3. Similarly, the total closing distance between lateral side 142 and medial side 144 of throat opening 140 is equal to twice the sum of fourth closing distance D4 for fourth lace position 106-4 and fifth closing distance D5 for fifth lace position 106-5.

Figure 40 provides a partial cross-sectional top view of the sole structure 200e with the insole 220e removed and the locking device 350d of figures 29-34 disposed over the inner surface 214e of the outsole 210e and biased in a locked condition to limit movement of the

pull cords

302d, 502 in their respective relaxed directions. In the illustrated example, the first pull cord 302d is a continuous loop corresponding to the loop tightening segment 318e, which loop tightening segment 318e is configured to receive the pulling force 322 for moving the

pull cords

302, 502 in the tightening direction 304. However, the second cord 502 includes two

free ends

508 and 512, the two

free ends

508 and 512 extending out of the locking device 350d to define a first lace segment 320-1 extending between the locking device 350d and the first end 508 and also a second lace segment 320-2 extending between the locking device 350d and the second end 512. Here, first end 508 and second end 512 are operatively connected to upper 100e at corresponding

attachment locations

608, 612. The release mechanism 352d may extend to the heel region 16 at the rear of the shoe 10e for receiving a release force 358 to transition the locking device 350d from the locked state to the unlocked state.

Figure 41 provides a partial cross-sectional top view of the sole structure 200e with the insole 220e removed and the wedge-shaped locking device 350b of figures 17-23 disposed over the inner surface 214e of the outsole 210e and biased in a locked condition to limit movement of the

drawstrings

302d, 502 in their respective slack directions. In the example shown, locking device 350b is rotated 180 degrees (180 °) from the position shown in fig. 17-23 such that first end 361 of housing 360 is opposite the toe end of shoe 10e and second end 362 of housing 360 is opposite the heel end of shoe 10e when housing 360 is disposed within the cavity of sole structure 200 e. FIG. 41 shows the loop tightening segment 318e extending out of the second end 362 of the housing 360, while the first and second lace segments 320-1 and 320-2 of the pull cord 302e extend from the first end 361 of the housing 360 of the wedge lock 350 b. With second end 362 of shell 360 now opposite the heel end of footwear 10e, release line 352b may extend to heel region 16 at the rear of footwear 10e for receiving release force 358 to transition locking device 350b from the locked condition to the unlocked condition.

While the locking devices or

cord locks

350, 350b, 350c, 350d of FIGS. 1-41 described above are described as being disposed in the sole structure 200e of the footwear 10-10e below the foot and in the heel portion 16 of the sole structure 200e, the locking

devices

350, 350b, 350c, 350d may be disposed at other locations without departing from the scope of this disclosure. For example, the locking

devices

350, 350b, 350c, 350d may be located at the midfoot portion 14 or forefoot portion 12 of the sole structure 200d, or in other configurations, one of the

locking devices

350, 350b, 350c, 350d may be disposed over an exterior surface of the footwear 10-10 e. For example, locking

devices

350, 350b, 350c, 350d may be disposed at any suitable location over an exterior surface of upper 100. In some examples, one or more of the

locking devices

350, 350b, 350c, 350d are disposed on the upper 100 or tongue portion 110 that is located above the top of the foot (e.g., above the instep). In other examples, one or more of the

locking devices

350, 350b, 350c, 350d are disposed along the heel portion of the upper 100. The guidance of pull cords 302d and/or 502 may be adjusted based on the position of locking

devices

350, 350b, 350c, 350d such that upper 100 may be moved between a relaxed state and a tightened state. Further, the positions of the slack grip 314 and the take-up grip 322 may be provided at other positions.

Referring to fig. 42-47, in some implementations, an article of footwear 10f includes an upper 100f, an outsole 210f attached to the upper 100f, an insole 220f, and a tightening mechanism 300f operable to move the upper 100f between a tightened state (fig. 46) and a relaxed state (fig. 47). In view of the fact that the components associated with article of footwear 10 are substantially similar in structure and function to article of footwear 10f, like reference numerals will be used hereinafter and in the drawings to identify similar components, while using like reference numerals including letter suffixes to identify those components that have been modified.

Upper 100f may be formed from a flexible material that forms upper 100 of fig. 1-6 to form an interior space 102f and transition between a tightened state and a loosened state to adjust the fit of interior space 102f around the foot. Upper 100f defines an ankle opening 104 in heel portion 16 to provide access to interior space 102 f. The upper 100f also includes a midsole 217 that extends around the perimeter of the upper 100f and has an inner surface opposite the upper 100f and an outer surface opposite the outsole 210 f. Fig. 43 provides an exploded view of the shoe 10f of fig. 42, showing the insole 220f corresponding to the insert insole received by the interior space 102f on the midsole 217, and the outsole 210f attached to an outer surface around the perimeter of the upper 100f and to an outer surface of the midsole 217. For example, the outsole 210f includes a ground-contacting surface 212 and an inner surface 214f disposed on an opposite side of the outsole 210f from the ground-contacting surface 212 and opposite an outer surface of the midsole 217. The insole 220f includes a bottom surface 222f opposite the midsole 217 and a footbed 224f disposed on a side of the insole 220f opposite the bottom surface 222 f. In some examples, a footbed or liner is disposed on the footbed 224f and is configured to receive a bottom surface of the foot. Accordingly, the outsole 210f, midsole 217, and insole 220f are arranged in a layered configuration, wherein the insole 220f is disposed within the interior space 102f of the upper 100f, on the midsole 217.

FIG. 44 is a top view of the footwear 10f, illustrating the upper 100f, the upper 100f including a throat opening 140f, the throat opening 140f corresponding with an instep of the foot and extending from the ankle opening 104 to an area adjacent the forefoot portion 12 between a lateral edge 142f and a medial edge 144f of the upper 100 f. In some examples, upper 100f includes a series of lateral engagement features or strand guides 180f extending along a lateral edge 142f of throat opening 140f and a series of medial engagement features or strand guides 190f extending along a medial edge 144f of throat opening 140 f. Referring to fig. 42 and 44, in some implementations, the tightening mechanism 300f includes a first cord 302f defining a length 318f extending from the locking device or cord lock 350, and a second cord 502f guided through engagement features or cord guides 180f, 190f and defining a length extending between a first end 508f and a second end 512f, wherein the first end 508f and the second end 512f are operatively connected to each other to automatically move the upper 100f between the tightened state and the loosened state as the tightening mechanism 300f moves between respective ones of the tightened state and the loosened state. For example, movement of tightening mechanism 300f in a tightened state tightens upper 100f by pulling lateral edge 142f and medial edge 144f toward each other to close or constrict throat opening 140f such that interior space 102f is closed around the foot. Fig. 46 shows the first and

second pull cords

302f and 502f movable in respective take-up

directions

304 and 504 to move the take-up mechanism 300f to a take-up state. Conversely, movement of tightening mechanism 300f in a relaxed state relaxes upper 100f to open interior space 102f for removal of the foot therefrom. Fig. 47 shows the

pull cords

302f and 502f being movable in the respective

slack directions

306 and 506 to move the take-up mechanism 300f to the slack condition.

In some examples, the first drawstring 302f is a continuous loop extending from the locking device 350 around the tongue portion 110 proximate where the ankle opening 104f and the throat opening 140f meet (i.e., proximate above the instep of the wearer). The exposed portion of the first cord 302f extending around the tongue portion 110 may be encased within a jacket 310 f. The sheath 310f may include a fabric material that imparts elastic properties and defines a sleeve or passage for guiding and enclosing the exposed portion of the first draw cord 302 f. In some examples, the sheath 310f may correspond to a cinching grip that allows a user to apply a pulling force 322f (fig. 46) to pull the first drawstring 302b away from the upper 100f to draw the lateral side 142f and the medial side 144f of the throat opening 140f together to move the upper 100f to a cinched state. The sheath 310f may accommodate the gathering of the cord 302f after tensioning of the cord 302f in a manner similar to that described above with respect to the

catheters

160, 170 by providing the sheath 310f with a lumen or space having a larger cross-sectional area than the outer diameter of the cord 302 f.

The locking device 350 may be disposed within the midfoot portion 14 (also referred to as the instep portion) of the shoe 10f, and the second drawstring 502f may extend through the locking device 350 to define the first lace segment 320-1f between the first end 508f of the drawstring 502f and the locking device 350 and to define the second lace segment 320-2f between the second end 512f of the second drawstring 502f and the locking device 350 f. Thus, both

free ends

508f and 512f may extend away from the locking device 350 and be guided through engagement features or cord guides 180f and 190f before the distal end of the throat opening 140f opposite the ankle opening 104f (i.e., at a location in the forefoot portion 12 near and above where the metatarsals and phalanges of the foot connect) are operatively connected to one another.

In addition, with continued reference to fig. 42 and 44, the upper 100f can define a passageway along the heel portion 16 for guiding a portion of the release mechanism 352f (e.g., a release wire) that transitions the locking device 350 from the locked state to the unlocked state to allow the first cord 302f to move in both

directions

304, 306 and the second cord 502f to move in both

directions

504, 506. For example, the release wire 352f may be pulled to transition the locking device 350 to the unlocked state and may extend from a first end 354f attached to the locking device 350 to a second end 356f exposed from the upper 100f to allow a user to grasp and pull the release wire 352f to move the locking device 350 from the locked state to the unlocked state. In some examples, the second end 356f of the release wire 352f includes a loop and/or gripping feature to allow a user to grasp and pull the release wire 352f when it is desired to move the locking device 350 to and/or release the locking device 350 from the unlocked state. The example shoe 10f shows a second end 356f of the release wire 352f attached to the sheath 314f corresponding to the slack grip and encased within the sheath 314f, wherein the slack grip allows a user to apply a release force 358f (fig. 47) to the sheath 314f and/or the second end 356f of the cord 352f to move the locking device 350 to the unlocked state. The sheath 314f may include a fabric material attached to the exterior surface of the upper 100f that is configured to define a sleeve or passage for guiding and enclosing the portion of the release wire 352f that extends from the insole 220f and operatively connects the release wire 352f at the second end 356 f. The sleeve or passage defined by the sheath 314f may accommodate the gathering of the release wire 352f after the release force 358f is applied. In other examples, the second end 356f of the release line 352f may be disposed near other areas of the footwear 10f, such as at or near the tongue portion 110, the lateral side 18 of the upper 100f, or the medial side 20 of the upper 100 f.

FIG. 44 illustrates a lacing pattern of a first segment 320-1f and a second segment 320-2f of a second drawstring 502f operatively connected to each other at a distal portion of the throat opening 140 f. In some examples, a connector 503 (e.g., a clasp) connects free end 508f of first lace segment 320-1f to free end 512f of second lace segment 320-2f at a location proximate a distal end of throat opening 140 f. In other examples, lace segments 320-1f, 320-2f may be knotted together at

free ends

508f, 512 f. Lateral engagement feature 180f is disposed adjacent lateral edge 142f of throat opening 140f and opposite medial engagement feature 190f disposed adjacent medial edge 144f of throat opening 140 f. This example shows engagement features 180f, 190f including respective tube segments, each having a respective entrance for receiving one of the

ends

508f, 512f of the second drawstring 502f after spanning the throat opening 140f, and for going toThe respective outlets of

ends

508f, 512f are directed back across throat opening 140 f. In some examples, each

engagement feature

180f, 190f is associated with a tube segment bent at approximately ninety degrees (90 °) and attached to upper 100 f. For example, the tubes associated with each

feature

180f, 190f may be stitched or adhesively bonded to the upper 100f or to an intermediate material attached to the upper 100 f. The tube may be formed of a substantially rigid material and may define an inner wall configured to facilitate slidability of the segments 320-1f, 320-2f (i.e., relative movement between the segments 320-1f, 320-2f and the

features

180f, 190 f) as the second cord 502f moves between the tightening direction 504 and the loosening direction 506. In some examples, the tubes are lined or coated with a low friction material, such as a lubricious polymer (e.g., Teflon) ^TM) The low friction material facilitates movement of the cord 502f in the tube. In other examples, the engagement features 180f, 190f include apertures (e.g., eyelets) formed through the upper 100f or a fabric or mesh loop attached to the upper 100f to receive the lace segments 320-1f, 320-2 f.

The first lace pattern of the first lace segment 320-1f extends along the lateral side 18 of the upper 100f, exits the upper 100f proximate the lateral side 142f of the throat opening 140f, and extends through the throat opening 140f from the lateral side 142f to the medial side 144 f. First lace segment 320-1f is then fed through sixth medial engagement feature 190-6, across throat opening 140f to lateral edge 142f, and through fifth lateral engagement feature 180-5 adjacent lateral edge 142 f. First lace segment 320-1f continues zigzag travel over throat opening 140f to be sequentially fed through fourth medial engagement feature 190-4, third lateral engagement feature 180-3, second medial engagement feature 190-2, and first lateral engagement feature 180-1, and finally operatively connected to second lace segment 320-2f at respective free ends 508f, 510 f. Connectors 503 may connect sections 320-1f, 320-2f together, or sections 320-1f, 320-2f may be knotted together.

The second lace pattern of the second lace segments 320-2f extends along the medial side 20 of the upper 100f, exits the upper 100f proximate the medial side edge 144f of the throat opening 140f, and extends through the throat opening 140f from the medial side edge 144f to the lateral side edge 142 f. Second lace segment 320-2f is then fed through sixth lateral engagement feature 180-6, through throat opening 140f to medial edge 144f, and through fifth medial engagement feature 190-5 adjacent medial edge 144 f. Second lace segment 320-2f continues zigzag travel over throat opening 140f to be sequentially fed through fourth lateral engagement feature 180-4, third medial engagement feature 190-3, second lateral engagement feature 180-2, and first medial engagement feature 190-1, and finally operatively connected to first lace segment 320-1f at respective free ends 508f, 510 f. While the exemplary configuration shows first and second lacing patterns associated with six pairs of opposing engagement features 180f, 190f, other configurations may include more or fewer engagement features 180f, 190 f.

In some implementations, the first lacing pattern associated with the first lace segment 320-1f and the second lacing pattern associated with the second lace segment 320-2f are selected such that a total closing distance between a lateral edge 142f and a medial edge 144f of the throat opening 140f according to the first lacing pattern is approximately equal to a total closing distance between a lateral edge 142f and a medial edge 144f of the throat opening 140f according to the second lacing pattern. Further, as the second cord 502f is moved in the tightening direction 504, the tightening distance of the first lace segment 320-1f is approximately equal to the tightening distance of the second lace segment 320-2 f. Thus, the tightening distance of the first lace segment 320-1f is approximately equal to the total closing distance between the lateral edge 142f and the medial edge 144f of the throat opening 140f according to the first lacing pattern, while the tightening distance of the second lace segment 320-2f is approximately equal to the total closing distance between the lateral edge 142f and the medial edge 144f of the throat opening 140f according to the second lacing pattern. Thus, when tightening mechanism 300f is transitioned to the tightened state, the lacing patterns associated with first and second lace segments 320-1f and 320-2f of second drawstring 502f may evenly distribute tension across the throat opening.

The

drawstrings

302f, 502f may be highly smooth and/or formed from one or more fibers having a low modulus of elasticity and high tensile strength. For example, the fibers may comprise high modulus polyethylene fibers having a high strength to weight ratio and very low elasticity. Additionally or alternatively, at least one of the

cords

302f, 502f may be formed of molded monofilament polymer and/or braided steel with or without other lubricious coatings. In some examples, at least one of the

cords

302f, 502f includes multiple strands of material braided together.

In some implementations, one or more guide tubes 325-1, 325-2, 325-3, 325-4 are configured to receive portions of pull cords 302f, 504f for guiding cords 302f, 504f through footwear 10 f. Each guide tube 325-1, 325-2, 325-3, 325-4 may include an inner diameter that is greater than an outer diameter of the receiving portion of the respective draw cord 302f, 504 f. In some examples, the guide tubes are operable to facilitate movement of cords 302f, 504f relative to upper 100f when cords 302f, 504f are moved in tightening

directions

304, 504 and loosening

directions

306, 506.

Referring to fig. 42 and 44, a first guide tube 325-1 is operable to receive and guide a portion of first lace segment 320-1f, and a second guide tube 325-2 is operable to receive a portion of second lace segment 320-2f and guide a portion of second lace segment 320-2f through insole 220f and upper 100 f. Similarly, the third guide tube 325-3 can be operable to receive and guide an outside portion of the first pull cord 302f, and the fourth guide tube 325-4 can be operable to receive an inside portion of the first pull cord 302f and guide the inside portion of the first pull cord 302f through the insole 220f and the upper 100 f. Additionally, a fifth guide tube 325-5 may receive and guide a portion of the release wire 352 f. Although the example illustrates tubes 325-1, 325-2, 325-3, 325-4 extending through the passage formed through the upper 100 from the heel portion 16 of the insole 220f to the ankle opening 104 of the upper 100f at the midfoot portion 14, one or more tubes may be disposed on an exterior surface of the upper 100f or on an interior surface of the upper 100f within the interior space 102 f.

In some implementations, the insole 220f defines a cavity 240f (fig. 43 and 45) for enclosing the locking device 350 and a passage for guiding the

cords

302f, 502f therethrough. FIG. 45 provides a bottom view of the insole 220f showing the cavity 240f and a plurality of passageways 820-1, 820-2, 820-3, 820-4, 820-5 formed in the bottom surface 222f of the insole 220 f. For clarity, the locking device 350,

cords

302f, 502f, and release wire 352f are removed from the view of fig. 45. The cavity 240f is configured to receive the locking device 350 such that a bottom surface of the locking device 350 is disposed on the midsole 217 within the midfoot 14 of the shoe 10 f. In some examples, the insole 220f is coupled to neither the midsole 217 nor the locking device 350, and the locking device 350 is attached/coupled to the midsole 217. For example, the locking device 350 may correspond to the locking device 350d of fig. 29-34, such that the housing 360d is attached to the midsole 217 within the midfoot 14, and the release wire 352f is guided under the housing 360d via the arcuate aperture 571 and through the feed slot 774 (fig. 32) before being guided through the passage 820-5 (and corresponding guide tube 325-5) formed in the bottom surface 222f of the insole 220 f.

The passages 820-1 and 820-2 are configured to receive and guide the lace segments 320-1f and 320-2f of the second pull cord 302f that extend out of the locking device 350. Here, the passage 820-1 may receive the portion of the guide tube 325-1 in which the first lace segment 320-1f is installed, and the passage 820-2 may receive the portion of the guide tube 325-2 in which the second lace segment 320-2 is installed. In some implementations, the first pathway 820-1 and the corresponding first guide tube 325-1 each include a first portion 1 extending from the locking device 350 toward the lateral side 18 of the insole 220f to a first curved portion, a second portion 2 extending from the first curved portion toward the heel 16 to a second curved portion, and a third portion 3 extending from the second curved portion toward the ankle opening 104 (fig. 45). The third portion 3 of the guide tube 325-1 may exit the pathway 820-1 of the insole 220f and enter a corresponding pathway formed through the upper 100f that extends along the lateral side 18 of the upper 100 f. Similarly, the second passageway 820-2 and the corresponding second guide tube 325-2 may each include a first portion 1 extending from the locking device 350 toward the medial side 20 of the insole 220f to a first curved portion, a second portion 2 extending from the first curved portion toward the heel 16 to a second curved portion, and a third portion 3 extending from the second curved portion toward the ankle opening 104. The third portion 3 of the guide tube 325-2 may exit the passageway 820-2 of the insole 220f and enter a corresponding passageway formed through the upper 100f that extends along the medial side 20 of the upper 100 f. Thus, referring to FIG. 42, the upper 100f defines the pathways of the lace segments 320-1f, 320-2f of the second drawstring 502f as exposed portions prior to being directed through the engagement features 180f, 190f disposed along the lateral side 142f and the medial side 144f of the throat opening 140 f.

FIG. 45 also shows the passages 820-3 and 820-4 configured to receive and guide the outboard and inboard portions of the first pull cord 302f that extend out of the locking device 350 along the length 318 f. Here, the passage 820-3 may receive the portion of the guide tube 325-3 in which the outboard portion of the first draw cord 302f is received, and the passage 820-4 may receive the portion of the guide tube 325-2 in which the inboard portion of the first draw cord 302f is received. In some implementations, the third passage 820-3 and the corresponding third guide tube 325-3 each include a first portion 1 extending from the locking device 350 toward the lateral side 18 of the insole 220f to a first curved portion, a second portion 2 extending from the first curved portion toward the heel 16 to a second curved portion, and a third portion 3 extending from the second curved portion toward the ankle opening 104. The third portion 3 of the guide tube 325-3 may exit the pathway 820-3 of the insole 220f and enter a corresponding pathway formed through the upper 100f that extends along the lateral side 18 of the upper 100 f. Similarly, the fourth passageway 820-4 and the corresponding fourth guide tube 325-4 may each include a first portion 1 extending from the locking device 350 toward the medial side 20 of the insole 220f to a first curved portion, a second portion 2 extending from the first curved portion toward the heel 16 to a second curved portion, and a third portion 3 extending from the second curved portion toward the ankle opening 104. The third portion 3 of the guide tube 325-4 may exit the passage 820-4 of the insole 220f and enter a corresponding passage formed through the upper 100f that extends along the medial side 20 of the upper 100 f. Accordingly, referring to FIG. 42, upper 100f defines a pathway extending along lateral side 18 and medial side 20 to guide first cord 302f to the exposed portion extending around tongue portion 110.

The portions of the guide tubes 325-1, 325-2, 325-3, 325-4, 325-5 extending through the corresponding passages 820-1, 820-2, 820-3, 820-4, 820-5 formed in the bottom surface 222f of the insole 220f may be attached to the surface of the midsole 217 at one or more locationsAnd/or the opposite surface of the insole 220 f. The guide tubes 325-1, 325-2, 325-3, 325-4, 325-5 may be formed from a substantially rigid material and may define an inner wall configured to facilitate movement of the cords 302f, 504f between their

respective tightening directions

304, 504 and loosening

directions

306, 506. In some examples, the tubes 325-1, 325-2, 325-3, 325-4, 325-5 are lined or coated with a low friction material, such as a lubricious polymer (e.g., Teflon @), that facilitates movement of the cords 302f, 504f therethrough^TM)。

In some configurations, once the foot is received by the interior space 102f and supported on the footbed 224f of the insole 220f, the upper 100f may be automatically tightened to ensure proper fit of the interior space 102f around the foot by applying a pulling force 322f to the first pull cord 302b without the need to manually tighten a lace or manually tighten other tightening members to tighten the upper 100 f. FIG. 46 provides a cross-sectional view taken along line 46-46 of FIG. 42, which illustrates the first cord 302f moving through the locking device 350 in the tightening direction 304 such that the length of the second cord 502f moves in the tightening direction 504, resulting in a decrease in the length of the lace segments 320-1f, 320-2f of the second cord 502f and an increase in the length 318f of the first cord 302 f. Here, the reduction in length by the lace segments 320-1, 320-2 is operable to close the throat opening 140f by tightening or tightening the upper 100f over the foot such that the foot is secured within the interior space 102f while supported on the footbed 224f of the insole 220 f. As with the pulling force 322 applied to the cinching grip 310 of fig. 1-6, the fit of the interior space 102f around the foot may be adjusted based on the magnitude and/or duration of the pulling force 322f applied to the first pull cord 302 f. In some cases, a user grips the sheath 310f to apply a pulling force 322f, and the sheath 310f encloses the exposed portion of the first cord 302f that extends around the tongue portion 110.

FIG. 47 provides an alternative cross-sectional view taken along line 46-46 of FIG. 42, illustrating upper 100f transitioned to a relaxed state in response to a release force 358f applied to release line 352 f. For example, when the locking device 350 is transitioned from the locked state to the unlocked state, the

pull cords

302f, 502f are permitted to move in the

slack directions

306, 506 to release the fit of the interior space 102f when the foot is moved and/or when the tongue portion 110 is pulled by the user. Here, movement of the second cord 502f in the slack direction 506 causes the length of the segments 320-1f, 320-2f to increase to allow the throat opening 140f to open, thereby loosening the upper 100f to facilitate transitioning from the tightened state to the relaxed state such that the foot may be more easily removed from the interior space 102 f. The guide tubes 325-2, 325-4 may allow the

cords

502f, 302f to move freely when the locking device 350 is in the unlocked state. The exemplary locking device 350 of the shoe 10f of FIGS. 42-47 may include any of the locking devices 350d described above or the locking devices 350e described below.

While the locking device 350 of fig. 42-47 is described above as being disposed within the interior space 102f of the upper 100f in the midfoot portion 14 and between the insole 220f and the midsole 217, the locking device 350 may be disposed at other locations without departing from the scope of this disclosure. For example, the position of the locking device 350 under the foot may be moved from the midfoot portion 14 to either the forefoot portion 12 or the heel portion 16. In other configurations, the locking device 350 may be disposed on an exterior surface of the upper 100f at any suitable location, such as at a top of the foot (e.g., above the instep) on the upper 100f or tongue portion 110 or along a heel portion of the upper 100 f. For example, the wedge-shaped locking device 350b of fig. 17-23 or the locking device 350e of fig. 59 may be suitable candidates for being located on the outer surface of the upper 100f due to the wrap-around sides of these

devices

350b, 350 e. The guidance of the

drawstrings

302f, 502f may be adapted to accommodate changes in the position of the locking device 350c (e.g., disposed above the foot or on the upper 100f along the heel portion 16) such that the upper 100f may be moved between a relaxed state and a tightened state. When the locking device 350 is disposed on the upper 100f at the heel portion 16, the sheath 314f encasing the second end portion 356f of the release wire 352f may be disposed at the lateral side 18 or the medial side 20 of the upper 100f or at any other suitable location. For example, the release line 352f may remain in the same position as shown in FIG. 42, with the locking device 350 generally positioned along the heel portion of the upper 100f between the release line 352f and the outsole 210 f.

Referring to fig. 48-54, in some implementations, an article of footwear 10g includes an upper 100g, an outsole 210g attached to the upper 100g, an insole 220g, and a tightening mechanism 300g to move the upper 100g between a relaxed state (fig. 52) and a tightened state (fig. 53). In view of the substantial similarity in structure and function of the components associated with the article of footwear 10 with respect to the article of footwear 10g, like reference numerals will be used hereinafter and in the drawings to refer to like components while like reference numerals contain a letter suffix to refer to those components that have been modified.

Upper 100g may be formed from a flexible material forming upper 100 of fig. 1-6 to form an interior space 102g and transition between a tightened state and a loosened state to adjust the fit of interior space 102g around the foot. Upper 100g defines an ankle opening 104 in heel 16 to provide access to interior space 102 g. The upper 100g also includes a midsole 217 (fig. 50) that extends around the perimeter of the upper 100g and has an inner surface opposite the upper 100g and an outer surface opposite the outsole 210 g. Fig. 50 provides a bottom perspective view of the shoe 10g of fig. 48 and 49, showing the separation/removal of the outsole 210g and insole 220g from the upper 100g to expose the outer surface of the midsole 217 on which the locking device 350 is disposed. In some configurations, the locking device 350 includes the locking device 350d of fig. 29-34, but may include any of the locking devices 350c described above or the locking device 350e described below.

As with the insole 220f of fig. 43 and 45, the insole 220g may define a corresponding cavity 240g (fig. 54) for enclosing the locking device 350 and a passage/channel for guiding the

cords

302g, 502g of the tightening mechanism 300 g. Since the locking device 350 is attached to the midsole 217, a cavity 240g is formed in the surface of the insole 220f opposite the midsole 217. That is, the cavity 240g is formed in a top surface of the insole 220f opposite the upper 100 g. Conversely, the cavity 240 of the article of footwear 10 is formed on the opposite side (i.e., bottom surface) of the insole 220 and opposite the outsole 210 (fig. 5). A similar arrangement is shown in fig. 13, 21-23, 36 and 46. In each of the foregoing arrangements, the locking device 350 may be located within the cavity 240 located on the top surface of the respective insole 220, or alternatively may be located within the cavity 240 located on the bottom surface of the respective insole 220. Further, the cavity 240g may be positioned on the bottom surface of the insole 220f, and the locking device 350 may alternatively be attached to the outsole 210g instead of the midsole 217.

The outsole 210g may also define an aperture/cavity that aligns with the cavity 240g of the insole 220g to receive at least a portion of the locking device 350 and/or to make a bottom surface of the locking device 350 visible when viewed through the ground-engaging surface 212. In other configurations, the insole 220g corresponds with an insert insole received by the interior space 102 on an interior surface of the midsole 217, while the outsole 210g is attached to an exterior surface around the perimeter of the upper 100g and to an exterior surface of the midsole 217 in a manner similar to that described with respect to the article of footwear 10 f.

The example upper 100g may be formed from a combination of one or more substantially inelastic or non-stretchable materials 400 and one or more substantially elastic or stretchable materials 500 disposed in different areas of the upper 100g to facilitate movement of the upper 100g between a tightened state and a relaxed state. The one or more elastic materials 500 may include any combination of one or more elastic fabrics such as, but not limited to, spandex, elastic fiber, rubber, or neoprene. The one or more non-elastic materials may include any combination of one or more thermoplastic polyurethanes, nylon, leather, vinyl, or another material/fabric that does not impart stretch properties. For example, lateral side 18 of upper 100g may include an elastic lateral side region 518 formed from one or more elastic materials 500 and a non-elastic lateral side region 418 formed from one or more non-elastic materials 400. In the illustrated example, the inelastic outer side region 418 surrounds the elastic outer side region 518. For example, the inelastic outer region 418 extends along the upper and lower

outer side edges

142g, 143g of the elastic outer region 518 and adjoins the upper and lower

outer side edges

142g, 143g of the elastic outer region 518.

Similarly, medial side 20 of upper 100g may include an elastic medial region 520 formed from one or more elastic materials 500 and a non-elastic medial region 420 formed from one or more non-elastic materials 400. In the example shown, inelastic inner region 420 encompasses elastic inner region 520. For example, the inelastic inner region 420 extends along and is contiguous with the upper and lower inner side edges 144g, 145g of the elastic inner region 520. In some configurations, an instep region 505 formed of one or more elastic materials 500 extends along upper 100g from ankle opening 104 through forefoot region 12 and between inelastic lateral region 418 and inelastic medial region 420 to bisect lateral side 18 and medial side 20 of upper 100 g. In other configurations, elastic instep region 505 is omitted and inelastic lateral region 418 and inelastic medial region 420 cooperate to cover the instep in interior space 102 g. In some configurations, the entire upper 100g is formed from one or more elastic materials 500, and one or more inelastic materials 400 are attached (e.g., bonded or secured) to the elastic materials at predetermined locations to define the

various regions

418, 420, 502, 518, 520 of the upper 100 g.

FIG. 49 is a top view of footwear 10g, illustrating upper 100g, with upper 100g including a throat closure 140g, with throat closure 140g corresponding with the instep of the foot and extending between a lower lateral edge 143g of elastic lateral region 518 and a lower medial edge 145g of elastic medial region 520 and extending from ankle opening 104 to a region adjacent forefoot 12. In some examples, throat closure 140g of upper 100g integrally forms tongue portion 110 from one or more non-elastic materials 400. Accordingly, throat closure 140g may define a portion of interior space 102g and enclose a foot therein when upper 100g is in either a tightened state or a loosened state. In some examples, the lateral side 18 of the upper 100g includes a series of lateral engagement features or strand guides 180g that extend along the throat closure 140g, and the medial side 20 of the upper 100g includes a series of medial engagement features or strand guides 190g that extend along the throat closure 140 g.

As shown in fig. 49, the cord guides 180g, 190g may each include a base 201 and a flange 203 extending from the base 201. As shown in fig. 49, base 201 may be attached to upper 100g via a suitable adhesive such that flange 203 extends from upper 100 g. The flange 203 may be integrally formed with the base 201 and may include an arcuate inner surface 205 having a convex shape. The base 201 and thus the flange 203 may be formed of a low friction material such as nylon. In addition, base 201 and flange 203 may be formed of a relatively hard material to limit movement of flange 203 relative to base 203, thereby allowing flange 203 to remain in a desired position relative to upper 100g, thereby allowing flange 203 to adequately guide cords 320-1g, 320-2g relative to upper 100 g. Finally, flange 203 may include an arcuate outer surface that is generally parallel to inner surface 205 and includes a concave shape. The convex inner surface 205 and the concave outer surface 207 may cooperate to provide the cord guides 180g, 190g with an overall curved profile such that the convex inner surface 203 includes a general C-shape for receiving and guiding the cords 320-1g, 320-2g, as shown in fig. 49.

In one configuration, cords 320-1g, 320-2g enter respective cord guides 180g, 190g, extend along convex inner surface 205 and exit respective cord guides 180g, 190g at a tangent to inner surface 205. As shown in fig. 49, cord guide 180g may be positioned on upper 100g such that convex interior surface 205 is opposite lateral side 18 and concave exterior surface 207 is opposite medial side 20. Similarly, cord guide 190g may be positioned such that convex inner surface 205 is opposite medial side 20 and concave outer surface 207 is opposite lateral side 18. Although the cord guides 180g, 190g are shown and described as being open and having a C-shape, one or more of the cord guides 180g, 190g may be formed from a curved tube (fig. 51) such that the inner surface is defined by the inner surface of the curved tube. In this configuration, the tube may be formed to the same or similar radius as the inner surface 205.

Referring to fig. 48-50, in some implementations, the tightening mechanism 300g includes a first cord 302g defining a length 318g extending from the locking device 350, and a second cord 502g routed through the engagement features 180g, 190g and defining a length extending between a first end 508g and a second end 512g, the first end 508g and the second end 512g being operatively connected to each other to automatically move the upper 100g between the tightened state and the loosened state when the tightening mechanism 300g is moved between the respective ones of the tightened state and the loosened state. First free end 508g and second free end 512g may be operatively connected to each other along a bottom surface of midsole 217 in forefoot region 12 of footwear 10 g. For example, movement of tightening mechanism 300g in a tightened state pulls one or both of the upper and lower

lateral edges

142g, 143g of elastic lateral region 518 toward each other, while pulling the upper and lower

medial edges

144g, 145g of elastic lateral region 520 toward each other to contract throat closure 140g such that interior space 102g is closed about the user's foot. Here, the width of elastic lateral region 518 (i.e., as measured by the distance between upper and lower

lateral edges

142g, 143 g) and the width of elastic medial region 520 (i.e., as measured by the distance between upper and lower

medial edges

144g, 145 g) may be decreased as tightening mechanism 300g is moved toward the tightened state to tighten the fit of upper 100 with the foot within interior space 102 g. Fig. 48 and 50 show the first and

second pull cords

302g and 502g being movable in respective take-up

directions

304 and 504 to move the take-up mechanism 300g to a take-up state. Conversely, movement of tightening mechanism 300g toward the relaxed state relaxes upper 100g to loosen throat closure 140g, thereby expanding the volume of interior space 102g to allow the foot to be removed therefrom. Fig. 48 and 50 show the first and

second pull cords

302g and 502g movable in respective

slack directions

306 and 506 to move the take-up mechanism 300g to a slack condition.

In some examples, the first drawstring 302g is a continuous loop extending from the locking device 350 (e.g., locking device 350d) around the tongue portion 110 proximate to where the ankle opening 104g and throat closure 140g meet (i.e., proximate to the area above the instep of the wearer). The exposed portion of the first cord 302g extending around the tongue portion 110 may be encased within a jacket 310 g. The sheath 310g may comprise a fabric material that imparts elastic properties and defines a sleeve or passage for guiding and enclosing the exposed portion of the first cord 302 g. Further, the sheath 310g may include a lumen or space having a larger cross-sectional area than the outer diameter of the cord 302g to accommodate the gathering of the cord 302g in a manner similar to that described above with respect to the

catheters

160, 170.

Sheath 310g may additionally be formed from a material and/or fabric that allows sheath 310g to move from a relaxed state to a stretched or expanded state when sheath 310g is moved in a direction away from upper 100g (i.e., when strand 302g is moved in tightening direction 304). When the force moving sheath 310g away from upper 100g is removed, the material and/or fabric of sheath 310g automatically causes sheath 310g to move back to a relaxed state and accommodate the gathering of cord 302g therein. In one example, the material of the sheath 310g may have an elasticity that causes the sheath 310g to automatically return to a relaxed state from an expanded state upon removal of a force that moves the sheath 310g away from the upper 100 g. At this time, the effective length of the cord 302g is lengthened and the effective length of the cord 502g is reduced. The increase in the effective length of the cord 302g is caused by the sheath 310g, which allows the cord 302g to gather therein. This bunching is caused by the effective length of the cord 302g being longer than the length of the sheath 310 g. The term "effective length" refers to the length of the

cords

302g, 502g relative to the locking device 350. For example, as cord 302g is pulled in tightening direction 304, the effective length of cord 302g increases as more of cord 302g is pulled out of locking device 350.

In the example shown, a separate tightening grip 311g is operatively connected to the sheath 310g at an attachment location near the tongue portion 110 to allow a user to apply a pulling force 322g (fig. 48) to pull the first cord 302g away from the upper 100g to contract the elastic lateral side region 518 and the elastic medial side region 520 by simultaneously pulling the respective upper and lower

lateral edges

142g, 143g and the respective upper and lower

medial edges

144g, 145g toward each other to move the upper 100g to a tightened state. Other configurations may include operably connecting the cinch grip 311g to other portions of the sheath 310g along the length 318g of the first cord 302 g. In some implementations, separate tightening grip 311g is omitted, and sheath 310g corresponds to the tightening grip by allowing a user to grasp and apply a pulling force 322g to pull first drawstring 302g away from upper 100 g.

The locking device 350 may be disposed within the midfoot 14 (also referred to as the instep) of the shoe 10g, and the second cord 502g may extend through the locking device 350 to define the first lace segment 320-1g between the first end 508g of the cord 502g and the locking device 350 and the second lace segment 320-2g between the second end 512g of the second cord 502g and the locking device 350. First lace segment 320-1g may correspond with lateral lace segment 320-1g extending out of locking device 350 and leading through lateral engagement feature 180g, while second lace segment 320-2g may correspond with medial lace segment 320-2g extending out of locking device 350 and leading through medial engagement feature 190 g. Thus, the two

free ends

508g and 512g may extend out of the locking device 350 and be guided through their respective engagement features 180g and 190g before operatively connecting to each other under the midsole 217 in the forefoot 12, near and above the phalanges connection of the metatarsals of the foot.

Additionally, with continued reference to FIG. 50, the upper 100g may define a channel along the medial side 20 for guiding a portion of a release mechanism 352g (e.g., a release wire) that transitions the locking device 350 from the locked state to the unlocked state to allow the first pull cord 302g to move in both

directions

304, 306 and the second pull cord 502g to move in both

directions

504, 506. For example, the release wire 352g may be pulled to transition the locking device 350 to the unlocked state and may extend from a first end 354g attached to the locking device 350 to a second end 356g exposed from the upper 100g to allow a user to grasp and pull the release wire 352g to move the locking device 350 from the locked state to the unlocked state. In some examples, the second end 356g of the release wire 352g includes a loop and/or gripping feature to allow a user to grasp and pull the release wire 352g when it is desired to move the locking device 350 to and/or release the locking device 350 from the unlocked state. The example shoe 10g shows a second end 356g of the release wire 352g attached to the sheath 314g corresponding to the slack grip and encased within the sheath 314g, wherein the slack grip allows a user to apply a pulling force 324g (fig. 50) to the sheath 314g and/or the second end 356g of the cord 352g to move the locking device 350 to an unlocked state by moving the slack grip in a direction away from the upper 100 g. The sheath 314g may include a textile material attached to the exterior surface of the upper 100g to define a sleeve or passage for guiding and enclosing the portion of the release wire 352g extending from the insole 220g and operatively connecting the release wire 352g at the second end 356 g. The sleeve or passage defined by the sheath 314g may accommodate the gathering of the release wire 352g after the release force 324g is applied. In other examples, the second end 356g of the release line 352g may be disposed near other areas of the footwear 10g, such as at or near the tongue portion 110, the lateral side 18 of the upper 100g, or the heel portion 16 of the upper 100 g.

Fig. 51 illustrates a perspective view of an alternative configuration of footwear 10g, showing a release wire 352g extending out of a passage along medial side 20 of upper 100g and a first pull cord 302g extending into a corresponding passage defined by upper 100g to provide the appearance of first pull cord 302g and release wire 352g corresponding thereto. Here, the exposed portion of the first pull cord 302g extending around the tongue portion 110 is generally aligned with the exposed portion of the release wire 352 g. The first pull cord 302g may be encased within a sheath 310g and may optionally include a tightening grip 311g for allowing the wearer to apply a pulling force 322g, and a release wire 352g may be encased within the sheath 314g and have a second end 356g attached to the upper 100g to provide a slack grip that allows the wearer to apply the pulling force 324g for moving the locking device 350 from the locked state to the unlocked state. The

sheaths

310g, 314g may define a substantially equal thickness and a substantially equal width. Thus, in addition to forming a slack grip, the second end 356g of the release wire 352g is attached to the upper 100g at an attachment location along the medial side 20, such that it is recognized that despite the fact that the release wire 352g and the first pull cord 302g operate independently of one another, both

sheaths

310g, 314g deploy the exposed portion of the pull cord/cord. Although not shown in the alternative configuration, a first end 354g of a release wire 352g is attached to the locking device 350. In addition, the medial strap segment 320-2g of the second cord 502g extends from the locking device 350 through the corresponding passage defined by the upper 100 and travels through the medial engagement feature 190g, as described above.

Fig. 52 and 53 illustrate a pattern of upper 100g prior to attaching upper 100g to sole structure 200g to form article of footwear 10 g. The elastic outer region 518 includes an upper outer side edge 142g and a lower outer side edge 143g surrounded by the inelastic outer region 418, and the elastic inner region 520 includes an upper inner side edge 144g and a lower inner side edge 145g surrounded by the inelastic inner region 420. In the illustrated example, the inelastic outer region 418 includes an upper portion 418-1 that extends adjacent to the upper outboard edge 142g of the elastic outer region 518 and a lower portion 418-2 that extends adjacent to the lower outboard edge 143g of the elastic outer region 518. Similarly, the inelastic inner side region 420 includes an upper portion 420-1 extending adjacent the upper inner side edge 144g of the elastic inner side region 520 and a lower portion 420-2 extending adjacent the elastic inner side region 520. Additional layers formed from one or more inelastic materials 400 may be applied over portions of elastic lateral side region 518 and elastic medial side region 520 and/or portions of inelastic lateral side region 418 and inelastic medial side region 420 to provide stiffening and aesthetic properties, as evidenced by footwear 10g depicted in fig. 48-50.

With continued reference to fig. 52 and 53, the lateral and medial segments 320-1g and 320-2g of the second drawstring 502g travel through a corresponding one of the lateral and medial engagement features 180g and 190g disposed along the throat closure 140g of the upper 100 g. After upper 100g is attached to midsole 217, free end 508g of lateral strap section 320-1g and free end 512g of medial strap section 320-2g may be operatively connected to one another along a bottom surface of midsole 217 at a location proximate forefoot portion 12. For example, the connector 503 (e.g., a buckle in fig. 50) may connect the free ends 508g, 512g to each other, or the free ends 508g, 512g may be knotted together. In other configurations, free ends 508g, 512g are secured to upper 100g at separate locations near the distal end of throat closure 140 g.

The outboard engagement features 180g include a set of upper outboard engagement features or cord guides 182-1, 182-2, 182-3 disposed on the upper portion 418-1 of the inelastic outboard region 418 and a set of lower outboard engagement features 183-1, 183-2 opposite the set of upper outboard engagement features or cord guides 182-1, 182-2, 182-3 and disposed on the lower portion 418-2 of the inelastic outboard region 418. Thus, the elastic outer side region 518 is disposed between the lower outer side engagement features 183-1, 183-2 and the upper outer side engagement features 182-1, 182-2 and 182-3. This example shows lower outside engagement features 183-1, 183-2 and upper outside engagement features 182-1, 182-2 and 182-3, which lower outside engagement features 183-1, 183-2 and upper outside engagement features 182-1, 182-2 and 182-3 comprise respective tube portions each having a corresponding inlet for receiving free end 508g of outside segment 320-1g across elastic outside region 518 and a corresponding outlet for directing end 508g back across elastic outside region 518. In some examples, each outboard engagement feature 182, 183 is associated with a portion of the tube that is bent at approximately 90 degrees (90 °) and is attached to a corresponding portion 418-1, 418-2 of the inelastic outboard region 418. For example, the tubes associated with features 182, 183 may be stitched or adhesively bonded to inelastic outer side region 418 or to an intermediate material attached to inelastic outer side region 418. Although this example shows a lateral engagement feature 180g that includes three upper lateral engagement features 182-1, 182-2, and 182-3 and two lower lateral engagement features 183-1, 183-2, other configurations may include various sets that include a greater or lesser number of engagement features. In some examples, the lower lateral engagement feature 183 includes a greater number of engagement features than the upper lateral engagement feature 182. In yet another example, the upper lateral engagement feature 182 and the lower lateral engagement feature 183 each include the same number of engagement features.

The number of upper and lower lateral engagement features 182 and 183 may be optimized to reduce the friction of lateral lace segment 320-1g as second cord 502g is moved in tightening direction 504. Further, the arrangement of upper lateral engagement feature 182 and lower lateral engagement feature 183 on upper 100g may be selected such that each portion of cord 502g extending between each pair of corresponding upper lateral engagement features 182 and lower lateral engagement features 183 is substantially straight to reduce friction as the cord moves in tightening direction 504 and in loosening direction 506.

The inner engagement features 190g include a set of upper inner engagement features or cord guides 192-1, 192-2, and 192-3 disposed on the upper portion 420-1 of the inelastic inner region 420 and a set of lower inner engagement features or cord guides 193-1, 193-2 opposite the set of upper inner engagement features or cord guides 192-1, 192-2, and 192-3 and disposed on the lower portion 420-2 of the inelastic inner region 420. Thus, the elastic medial region 520 is disposed between the lower medial engagement features 193-1, 193-2 and the upper medial engagement features 192-1, 192-2, and 192-3. This example shows lower and upper inner engagement features 193-1, 193-2, 192-1, 192-2, 192-3, 193-1, 193-2 and 192-1, 192-2, 192-3 comprising respective tube portions each having a corresponding inlet for receiving free end 512g of inner section 320-2 across the elastic inner region 520 behind and a corresponding outlet for directing end 512g back across elastic inner region 520. In some examples, each medial engagement feature 192, 193 is associated with a portion of the tube that is bent at approximately 90 degrees (90 °) and is attached to a corresponding portion 420-1, 420-2 of the inelastic medial region 420. For example, the tube associated with features 192, 193 can be stitched or adhesively bonded to inelastic inner side region 420 or to the intermediate material of inelastic inner side region 420. Although this example shows an inner engagement feature 190g that includes three upper inner engagement features 192-1, 192-2, and 192-3 and two lower inner engagement features 193-1, 193-2, other configurations may include various groups that include a greater or lesser number of engagement features. In some examples, the lower medial engagement feature 193 includes a greater number of engagement features than the upper medial engagement feature 192.

The number of upper medial engagement features or cord guides 192 and lower medial engagement features or cord guides 193 may be optimized to reduce friction of medial strap segment 320-2g as second cord 502g is moved in tightening direction 504. Further, the arrangement of upper medial engagement feature 182 and lower medial engagement feature 183 on upper 100g may be selected such that each portion of cord 502g extending between each pair of corresponding upper medial engagement features 182 and lower medial engagement features 183 is substantially straight to reduce friction as the cord moves in tightening direction 504 and loosening direction 506.

In yet another example, the upper inner engagement feature or cord guide 192 and the lower inner engagement feature or cord guide 193 each include the same number of engagement features. In some implementations, to provide an evenly distributed tightening when upper 100g is moved into the tightened state, the number of upper medial engagement features 192-1, 192-2, and 192-3 is equal to the number of upper lateral engagement features 182-1, 182-2, and 182-3, and the number of lower medial engagement features 193-1, 193-2 is equal to the number of lower lateral engagement features 183-1, 183-2.

The tube of the outboard engagement feature 180g and the tube of the inboard engagement feature 190g can be formed of a substantially rigid material and can define an inner wall that slidably receives the segments 320-1g, 320-2g as the second cord 502g moves between the tightening direction 504 and the loosening direction 506. Further, the tube may not be completely enclosed, whereby the engagement features 180g, 190g only include walls at locations where the sections 320-1g, 320-2g contact the

features

180g, 190 g. For example, the engagement features 193-1, 193-2 can be open near the ends of the leader line that identify the engagement features 193-1, 193-2 in FIG. 53, such that the engagement features 193-1, 193-2 are closed at the side opposite the other engagement features 192-1, 192-2, 192-3 (i.e., the side in contact with the sections 320-1g, 320-2 g), and such that the engagement features 193-1, 193-2 are open on the opposite side of the engagement features 193-1, 193-2. Each of the engagement features 180g and 190g may be formed from a closed tube, or may have open sides, as described above with respect to features 193-1, 193-2.

In some examples, the inner wall of the tube is lined or coated with a low friction material, such as a lubricious polymer (e.g., Teflon), that facilitates movement of the draw cord 502g therein^TM). By coating the tube with a low friction material, the number of turns used per lacing pattern can be increased. For example, the outboard engagement feature 180g and the inboard engagement feature 190g each provide five (5) loops of the cord 502g without friction that adversely inhibits movement of the cord 502g in the take-up direction 504. In other examples, engagement features 180g, 190g include apertures (e.g., eyelets) formed through inelastic lateral side region 418 and inelastic medial side region 420 of upper 100g, or through fabric or mesh loops attached to inelastic lateral side region 418 and inelastic medial side region 420 of upper 100g, to receive lace segments 320-1g, 320-2 g. When the pull cord 502g is moved in the tightening direction 504, the fabric or mesh belt/webbing may create more friction with the pull cord 502g than the friction provided by a tube lined with a low friction material. Thus, the fabric used as the engagement feature 180g, 190gOr the maximum number of mesh loops may be limited to no more than a threshold number of turns (e.g., three turns) of the pull cord 502g such that friction does not adversely inhibit movement of the pull cord 502g in the tightening direction 504.

Referring to fig. 48, 49, 51, and 52, the lateral lace pattern of lateral lace segment 320-1g extends from locking device 350 along lateral side 18 of upper 100g at midfoot portion 14 to lateral guide feature 187 disposed near the heel portion. Lateral guide feature 187 serves as an anchor point for lateral lace segment 320-1g such that lateral lace segment 320-1g extends along lateral side 18 of upper 100g in a direction proximate ankle opening 104 to a third upper lateral engagement feature 182-3 disposed proximate the location where ankle opening 104 intersects throat closure 140 g. Lateral lace segment 320-1g is then fed through third upper lateral engagement feature 182-3, through elastic lateral region 518 from upper lateral edge 142 to lower lateral edge 143g, and through second lower lateral engagement feature 183-2. Lateral lace segment 320-1g continues to travel zigzag through elastic lateral region 518, sequentially advancing through second upper lateral engagement feature 182-2, first lower lateral engagement feature 183-1, and first upper lateral engagement feature 182-1, and then finally operatively connecting to second lace segment 320-2g at respective free end portions 508g, 510g, as shown in fig. 50. Connector 503 may connect sections 320-1g, 320-2g together, or sections 320-1g, 320-2g may be knotted together. In other configurations, free end 508g of first lace segment 320-1g may be secured directly to one or more inelastic materials 400 of upper 100g upon exiting first upper lateral engagement feature 182-1.

Referring to fig. 49-52, the medial lace pattern of the medial lace segment 320-2g extends from the locking device 350 along the medial side 20 of the upper 100g at the midfoot portion 14 to the medial guide feature 189 disposed adjacent the heel portion 16. Lateral guide feature 187 and medial guide feature 189 may correspond to the same material (e.g., fabric) that is secured to the heel end of the upper and has a pair of loops associated with a corresponding one of guide features 187, 189. Just as with lateral guide feature 187, medial guide feature 189 serves as an anchor point for medial strap section 320-2g, such that medial strap section 320-2g extends along medial side 20 of upper 100g in a direction proximal to ankle opening 104 to a third upper medial engagement feature 192-3 disposed near the location where ankle opening 104 intersects throat closure 140. Medial band segment 320-2g is then fed through third upper medial engagement feature 192-3, from upper medial edge 144g through elastic medial region 520 to lower medial edge 145g, and through second lower medial engagement feature 193-2. Medial lace segment 320-2g continues to travel zigzag through elastic medial region 520, sequentially advancing through second upper medial engagement feature 192-2, first lower medial engagement feature 193-1, and first upper medial engagement feature 192-1, before finally connecting to first lace segment 320-1g at respective free ends 508g, 510g via connector 503, as shown in fig. 50.

Referring to fig. 52 and 53, in some implementations, the lateral lacing pattern associated with the lateral lace segment 320-1g and the medial lacing pattern associated with the medial lace segment 320-2g are selected such that the total closure between the upper lateral edge 142g and the lower lateral edge 143g of the elastic lateral region 518 according to the lateral lacing pattern is approximately equal to the total closure distance between the upper medial edge 144g and the lower medial edge 145g of the elastic medial region 520 according to the medial lacing pattern. FIG. 52 illustrates upper 100g in a relaxed condition, and FIG. 53 illustrates upper 100g in a tightened condition, wherein the distance between upper lateral edge 142g and lower lateral edge 143g of elastic lateral region 518 and between upper medial edge 144g and lower medial edge 145g of elastic medial region 520 decreases as second drawstring 502g is moved in tightening direction 504.

In some implementations, as second cord 502g is moved in tightening direction 504, the distance of tightening of lateral strap section 320-1g is approximately equal to the distance of tightening of medial strap section 320-2 g. Thus, the tightening distance of lateral lace segment 320-1g is approximately equal to the reduced width between upper lateral edge 142g and lower lateral edge 143g of elastic lateral region 518 according to the lateral lace pattern, while the tightening distance of medial lace segment 320-2g is approximately equal to the reduced width between upper medial edge 144g and lower medial edge 144g of elastic medial region 520 according to the medial lace pattern. Thus, when tightening mechanism 300g transitions upper 100g from a relaxed state (FIG. 52) to a tightened state (FIG. 53), the lacing pattern of second cord 502g associated with lateral and medial strap segments 320-1g and 320-2g evenly distributes tension across throat closure 140g by contracting elastic lateral region 518 and elastic medial region 520.

The

drawstrings

302g, 502g may be highly lubricious and/or formed from one or more fibers having a low modulus of elasticity and high tensile strength. For example, the fibers may comprise high modulus polyethylene fibers having a high strength to weight ratio and very low elasticity. Additionally or alternatively, at least one of the

pull cords

302g, 502g may be formed from a molded monofilament polymer and/or braided steel with or without other lubricious coatings. In some examples, at least one of the

drawstrings

302g, 502g includes multiple strands of material woven together.

In some implementations, one or more guide tubes 325-1g, 325-2g, 325-3g, and 325-4g are configured to receive portions of

drawstrings

302g, 502g for guiding

drawstrings

302g, 502g through footwear 10 g. Each guide tube 325-1g, 325-2g, 325-3g, 325-4g may have an inner diameter that is greater than an outer diameter of the received portion of the

corresponding draw cord

302g, 502 g. In some examples, the guide tube causes the

pull cords

302g, 502g to move relative to the upper 100g as the

pull cords

302g, 502g move in the take-up

direction

304, 504 and the

slack direction

306, 506.

Referring to fig. 48 and 50, a first guide tube 325-1g may receive and guide a portion of lateral strap section 320-1g, and a second guide tube 325-2g may receive a portion of medial strap section 320-2g and guide the portion of medial strap section 320-2g through midsole 220g and upper 100 g. Similarly, a third guide tube 325-3g may receive and guide an outer side portion of the first pull cord 302g, and a fourth guide tube 325-4g may receive and guide an inner side portion of the first pull cord 302g through the insole 220g and the upper 100. In addition, the fifth guide tube 325-5g may receive a portion of the release wire 352g and guide the portion of the release wire 352g through the insole 220g and the upper 100 g. Although the examples show tubes 325-1g, 325-2g, 325-3g, 325-4g all extending through the passage formed through upper 100g from the midfoot portion 16 of insole 220g toward the throat closure 140g of upper 100g or ankle opening 104 at heel portion 16 of upper 100, one or more tubes may be disposed on an exterior surface of upper 100g or on an interior surface within interior space 102g of upper 100 g.

FIG. 54 provides a bottom view of the insole 220g showing the cavity 240g for enclosing the locking device 350 and the passageways/channels 820-1g, 820-2g, 820-3g, 820-4g, and 820-5g formed through the insole 220g for guiding the

pull cords

302g, 502g therethrough. In the example shown, a cavity 240g is formed through the footbed and the bottom surface 222g of the insole 222g such that the locking device 350 secured to the midsole 217 resides in the cavity 240 g. Other configurations may include a cavity 240g formed in the footbed rather than extending through the bottom surface 222 g. In some examples, the insole 220g is bonded to neither the midsole 217 nor the inner surface of the outsole 210g, and the locking device 350 is attached/bonded to the bottom surface of the midsole 217. For example, the locking device 350 may correspond to the locking device 350d of fig. 29-34, such that the housing 360d is attached to the bottom surface of the midsole 217 within the midfoot 14, and the release wire 352g travels under the housing 360d via the arcuate aperture 571 and through the feed slot 774 (fig. 32) before traveling through the passage 820-5g (and corresponding guide tube 325-5g) formed by the insole 220 g. Portions of one or more of passageways 820-1g, 820-2g, 820-3g, 820-4g, and 820-5g may be formed through bottom surface 222g, footbed 224g, or between bottom surface 222g and footbed 224 g.

The passages 820-1g and 820-2g are configured to receive and guide the lace segments 320-1g and 320-2g of the second cord 502g that extend away from the locking device 350 disposed in the midfoot portion 14. Here, the passage 820-1g may receive the portion of the guide tube 325-1g that encloses the lateral lace segment 320-1g therein, and the passage 820-2g may receive the portion of the guide tube 325-2g that encloses the medial lace segment 320-2g therein. In some implementations, the first passage 820-1g and the corresponding first guide tube 325-1g each include a first portion 1 extending from the locking device 350 toward the lateral side 18 of the insole 220g to a curved portion and a second portion 2 extending from the curved portion toward the ankle opening 104 at the heel 16. The second portion 2 of the guide tube 325-1g may exit the passage 820-1g of the insole 220g and extend along a portion of the lateral side 18 of the upper 100 g. Likewise, the second passage 820-2g and the corresponding second guide tube 325-2g may each include a first portion 1 extending from the locking device 350 toward the medial side 20 of the insole 220g to a curved portion and a second portion 2 extending from the curved portion toward the ankle opening 104 at the heel 16. The second portion 2 of the guide tube 325-2g may exit the passage 820-2g of the insole 220g and extend along a portion of the medial side 20 of the upper 100 g. Thus, referring to fig. 48 and 50, the upper 100g includes additional guide features for the lace segments 320-1g, 320-2g of the second drawstring 502g to guide the lace segments 320-1g, 320-2g along a corresponding one of the lateral side 18 and the medial side 20 of the upper 100g before the lace segments 320-1g, 320-2g travel through the corresponding lateral engagement feature 180g and medial engagement feature 190g disposed along the lateral side 18 and the medial side 20 of the throat closure 140 g.

FIG. 54 also shows passageways 820-3g and 820-4g, which passageways 820-3g and 820-4g are configured to receive and guide the outer and inner sides of the first pull cord 302g that extend away from the length 318g of the locking device 350. Here, the passage 820-3g may receive the portion of the guide tube 325-3g that encloses the outer side of the first draw cord 302g therein, and the passage 820-4g may receive the portion of the guide tube 325-2g that encloses the inner side of the first draw cord 302g therein. In some implementations, the third pathway 820-3g and the corresponding third guide tube 325-3g each include a first portion 1 that extends from the locking device 350 toward the lateral side 18 of the insole 220g to a curved portion and a second portion 2 that extends from the curved portion toward a location near where the throat closure 140g intersects the ankle opening 104. The second portion 2 of the guide tube 325-3g may exit the passage 820-3g of the insole 220g and extend along the lateral side 18 of the upper 100g in a direction away from the outsole 210 g. Likewise, the fourth passage 820-4g and the corresponding fourth guide tube 325-4g may each include a first portion 1 extending from the locking device 350 toward the medial side 20 of the insole 220g to a curved portion and a second portion 2 extending from the curved portion toward a location near where the throat closure 140g intersects the ankle opening 104. The second portion 2 of the guide tube 325-4g may exit the passage 820-4g of the insole 220g and extend along the medial side 20 of the upper 100g in a direction away from the outsole 210 g.

The passages 820-5g are configured to receive and guide portions of the release wire 352 that extend away from the locking device 350. Here, the passages 820-5g may receive portions of the guide tubes 325-5g that enclose the release wire 352g therein. In some implementations, the pathway 820-5g includes a first portion 1 extending from the locking device 350 toward the heel 16 of the insole 220g to a first curved portion, a second portion 2 extending from the first curved portion toward the medial side 20 of the insole 220g to a second curved portion, and a third portion 3 extending from the second curved portion toward a location near where the throat closure 140g intersects the ankle opening 104. The third portion 3 of the guide tube 325-5g may exit the passage 820-5g of the insole 220g and enter a corresponding passage formed through the upper 100g, while the third portion 3 of the guide tube 325-5g extends along the inside of the upper 100g before exiting the passage and attaching to the upper 100g at the second end 356 to provide a loose grip that allows the wearer to apply a pulling force 324g (fig. 50) to transition the locking device 350 to the unlocked state.

The portions of the guide tubes 325-1g, 325-2g, 325-3g, 325-4g, and 325-5g that extend through corresponding passageways 820-1g, 820-2g, 820-3g, 820-4g, and 820-5g formed in the insole 220g may be attached to a surface of the midsole 217 and/or to an opposite surface of the insole 220g at one or more locations. The guides 325-1g, 325-2g, 325-3g, 325-4g, and 325-5g may be formed of a substantially rigid material and may define an inner wall configured to facilitate movement of the

pull cords

302g, 502g between their

respective tightening directions

304, 504 and loosening

directions

306, 506. In some examples, the tubes 325-1g, 325-2g, 325-3g, 325-4g, and 325-5g are lined or coated with a low friction material, such as a lubricious polymer (e.g., Teflon @), that facilitates movement of the

pull cords

302f, 502g therethrough ^TM)。

In some configurations, once a foot is received by interior space 102g and supported on midsole 217 (e.g., supported on a liner disposed on midsole 217), upper 100g may be automatically tightened by applying tension 322g to first cord 302g without having to manually tie a lace or manually tighten other fasteners to tighten upper 100g, thereby ensuring the fit of interior space 102g around the foot. Specifically, as first drawstring 302g is applied with pulling force 322g, the lateral lacing pattern associated with lateral lace segment 320-1g and the medial lacing pattern associated with medial lace segment 320-2g evenly distribute tension across throat closure 140g by contracting elastic lateral region 518 and elastic medial region 520. By using medial and lateral lacing patterns, the fit of the interior space 102g around the instep and forefoot may be adjusted based on the magnitude and/or duration of the applied tension 322 g. Referring to fig. 48 and 50, movement of the first cord 302g in the tightening direction 304 via the locking device 350 causes a length of the second cord 502g to move in the tightening direction 504 and thereby simultaneously decreases a length of the lateral strap section 320-1g and a length of the medial strap section 302-2g of the second cord 502g and increases a length 318g of the first cord 302 g.

As shown in FIG. 53, a reduction in the length of lateral lace segment 320-1g operates to contract elastic lateral region 518 by reducing the distance between upper lateral edge 142g and lower lateral edge 143 g. As a set of upper lateral engagement features 182-1, 182-2, 182-3 and a set of lower lateral engagement features 183-1, 183-2 are attached to respective upper portion 418-1 and lower portion 418-2 of inelastic lateral region 418, the one or more inelastic materials 400 forming upper portion 418-1 and lower portion 418-2 provide reinforcement and prevent gathering of upper 100g for locating and adjusting the fit of interior space 104g along lateral side 18 of throat closure 140 g. Similarly, a reduction in the length of medial strap section 320-2g operates to contract elastic medial region 520 by reducing the distance between upper medial edge 142g and lower medial edge 143 g. As a set of upper medial engagement features 192-1, 192-2, 192-3 and a set of lower medial engagement features 193-1, 193-2 are attached to corresponding upper portion 420-1 and lower portion 420-2 of inelastic medial region 420, the one or more inelastic materials 400 forming upper portion 420-1 and lower portion 420-2 provide reinforcement and prevent gathering of upper 100g for locating and adjusting the fit of interior space 104g along medial side 20 of throat closure 140 g. Just as with the pulling force 322 applied to the cinching grip 310 of fig. 1-6, the fit of the interior space 102g around the foot can be adjusted based on the magnitude and/or duration of the pulling force 322g applied to the first cord 302 g. In some cases, the wearer grasps the sheath 310g encasing the exposed portion of the first cord 302g extending around the tongue portion 110 to apply a pulling force 322 g.

Upper 100g may transition to a relaxed state in response to a release force 324g applied to release wire 352g to transition locking device 350 from a locked state to an unlocked state. For example, with the locking device 350 transitioned from the locked state to the unlocked state, the

pull cords

302g, 502g are permitted to move in the

slack directions

306, 506 as the foot moves and/or as the wearer pulls the tongue portion 110 to slack the appropriate degree of the interior space 102 g. Here, movement of the second cord 502g in the loosening direction 506 causes the length of the segments 320-1g, 320-2g to increase to allow the respective elastic lateral region 518 and elastic medial region 520 to return to their respective relaxed, generally flat states, thereby loosening the upper 100g to facilitate transitioning from a tightened state to a relaxed state such that the foot may be removed from the interior space 102 g. The example locking device 350 of the shoe 10g of fig. 48-54 may include any of the locking devices 350-350 d described above, or the locking device 350e of fig. 59-62 described in more detail below.

Although the locking device 350 of fig. 48-54 described above is described as being disposed on the bottom surface of the midsole 14 located in the midfoot 14 and encapsulated by the cavity 240g of the insole 220g, the locking device 350 may be disposed at other locations without departing from the scope of this disclosure. For example, the position of the locking device 350 under the foot may be moved from the midfoot portion 14 to one of the forefoot portion 12 or heel portion 16. In other configurations, the locking device 350 may be disposed at any suitable location on the exterior surface of the upper 100g, such as over the top of the foot next to the upper 100g or tongue portion 110 (e.g., over the instep), or along the heel portion of the upper 100 g. For example, one of the wedge-shaped locking devices 350b of fig. 17-23 and 350e of fig. 49-62 is a suitable candidate because the wedge-shaped

locking devices

350b, 350e have relatively small package sizes. In other configurations, the locking device 350 may be disposed within the interior space 102g of the upper 100g and between the inner surface of the midsole 217 and the insertion insole, as described above with reference to the article of footwear 10f of fig. 42-47. The

drawstrings

302g, 502g may be arranged and adapted to accommodate changes in the position of the

locking devices

350c, 350e (e.g., disposed on the upper 100f above the foot or along the heel portion 16) such that the upper 100g may be moved between a relaxed state and a tightened state. When the locking device 350 is disposed on the upper 100g at the heel portion 16, the sheath 314g enclosing the second end 356g of the release wire 352g may be disposed at the lateral side 18 or the medial side 20 of the upper 100g or any other suitable location.

Fig. 57, 60, 63, and 66 illustrate alternative patterns for upper 100h, 100i, 100j, 100k, respectively, for attachment to sole structure 200g to form article of footwear 10g of fig. 48-54. In view of the substantial similarity in structure and function of the components associated with upper 100g with upper 100h, 100i, 100j, 100k, like reference numerals are used hereinafter and in the drawings to refer to like components and to refer to those components that have been modified including the letter suffix.

Referring to fig. 55-57, in some implementations, article of footwear 10h includes an upper 100h, an outsole 210g attached to upper 100h, an insole 220g, and a tightening mechanism 300h that moves upper 100h between a relaxed state and a tightened state. In view of the fact that the components associated with article of footwear 10 are substantially similar in structure and function to footwear 10h, like reference numerals will be used hereinafter and in the drawings to refer to like components, while like reference numerals, including letter suffixes, will be used to refer to those components that have been modified.

Upper 100h may be formed from a flexible material that forms upper 100 of fig. 1-6 to form interior space 102g and transition interior space 102g between a tightened state and a relaxed state to adjust the fit of interior space 102g around the foot. Upper 100h defines an ankle opening 104 in heel 16 to provide access to interior space 102 g. The upper 100h also includes a midsole 217, the midsole 217 extending around the periphery of the upper 100h and having an interior surface opposite the upper 100h and an exterior surface opposite the outsole 210 g. In one configuration, the midsole 217 includes a locking device 350 disposed thereon. For example, locking device 350 may include locking device 350d of fig. 29-34 but may also include any of the locking devices 305-350 c described above or locking device 350e described below.

As with the insole 220f of figures 43 and 45. The insole 220g may define a corresponding cavity 240g for receiving the locking device 350 and a passage/channel for guiding the

pull cords

302g, 502g of the tightening mechanism 300 h. With the locking device 350 attached to the midsole 217, a cavity 240g is formed in a surface of the insole 220f opposite the midsole 217. That is, the cavity 240g is formed in a top surface of the insole 220f opposite the upper 100 h. Conversely, the cavity 240 of the article of footwear 10 is formed on the opposite side (i.e., bottom surface) of the insole 220 and opposite the outsole 210 (fig. 5). A similar arrangement is shown in fig. 13, 21-23 and 46. In each of the foregoing arrangements, the locking device 350 may be located within the cavity 240 located on the top surface of the respective insole 220, or alternatively, the locking device 350 may be located within the cavity 240 located on the bottom surface of the respective insole 220. Further, the cavity 240g may be located on the bottom surface of the insole 220f, and the locking device 350 may alternatively be attached to the outsole 210g instead of the midsole 217.

The outsole 210g may also define an aperture/cavity that aligns with the cavity 240g of the insole 220g to receive at least a portion of the locking device 350 and/or to make the bottom surface of the locking device 350 visible when viewed through the ground-engaging surface 212. In other configurations, the insole 220g corresponds to an insert insole received by the interior space 102 on an interior surface of the midsole 217, while the outsole 210g is attached to an exterior surface around the perimeter of the upper 100h and to an exterior surface of the midsole 217 in a manner similar to that described with respect to the article of footwear 10 f.

The upper 100g of fig. 57 includes an elastic lateral region 518h and an elastic medial region 520h, each of which elastic lateral region 518h and elastic medial region 520h is formed from one or more elastic materials 500, as described above with respect to the upper 100g of fig. 48-54. A non-elastic outer region 418h (formed from one or more non-elastic materials 400) surrounds the upper and lower

outboard edges

142h, 143h of the elastic outer region 518h, while a non-elastic inner region 420h (formed from one or more non-elastic materials 500) surrounds the upper and lower

inboard edges

144h, 145h of the elastic inner region 520 h. Additional layers formed from one or more inelastic materials 400 may be applied over portions of elastic lateral side region 518h and elastic medial side region 520h and/or portions of inelastic lateral side region 418h and inelastic medial side region 420h to provide stiffening and aesthetic properties, as evidenced by article of footwear 10g depicted in fig. 48-50. Lateral and medial segments 320-1g and 320-2g of second cord 502g travel through a corresponding one of lateral and medial engagement features 180h and 190h disposed along corresponding lateral and

medial sides

18 and 20 of upper 100 h. Whereas lateral engagement feature 180h and medial engagement feature 190h of upper 100g of fig. 48-54 include respective line portions coated with a lubricious or other low friction material, lateral engagement feature 180h and medial engagement feature 190h of upper 100h of fig. 55 are associated with respective loops or straps formed of a low friction material and are attached to a corresponding non-elastic lateral region 418h or non-elastic medial region 420 h. The low friction material may comprise a thermoplastic polymer, such as nylon.

The outboard engagement feature 180h includes a set of upper outboard engagement features 182-1h, 182-2h disposed on the inelastic outboard region 418h opposite the upper outboard edge 142h of the elastic outboard region 518h and a set of lower outboard engagement features 183-1h, 183h-2h disposed on the inelastic outboard region 418h opposite the lower outboard edge 143h of the elastic outboard region 518 h. Thus, the number of upper outboard engagement features 182-1h, 182-2h is equal to the number of lower outboard engagement features 183-1h, 183-2 h. In the example shown, free end 508g of lateral lace segment 320-1g is tied to first lower lateral engagement feature 183-1 h. In other examples, free end 508g of lateral strap segment 320-1g may be attached (e.g., stitched) to inelastic lateral region 418h of upper 100 h. The inner side engagement features 190h include a set of upper inner side engagement features 192-1h, 192-2h disposed on the inelastic inner side region 420h opposite the upper inner side edge 144h of the elastic inner side region 520h and a set of lower inner side engagement features 193-1h, 193-2h disposed on the inelastic inner side region 420h opposite the lower inner side edge 145h of the elastic inner side region 520 h. Thus, the number of upper inside engagement features 192-1h, 192-2h is equal to the number of lower inside engagement features 193-1h, 193-2 hh. In the example shown, free end 512g of medial lace segment 320-2g is tied to first lower medial engagement feature 193-1 h. In other examples, free end 512g of medial strap segment 320-2g may be attached (e.g., stitched) to inelastic medial region 420h of upper 100 h. Whereas lateral and medial engagement features 180g and 190h of upper 100g of FIGS. 48-54 provide five (5) loops by each of lateral and medial strap sections 320-1g and 320-2g, lateral and medial engagement features 180h and 190h of upper 100h provide three (3) loops by each of lateral and medial strap sections 320-1g and 320-2 g. Here, fewer turns may compensate for the increased friction associated with the fabric loops or webbing forming the engagement features 180h, 190h as compared to the tubes forming the engagement features 180g, 190g of the upper 100g of fig. 48-50.

Referring to fig. 58-60, in some implementations, an article of footwear 10i includes an upper 100i, an outsole 210g attached to the upper 100i, an insole 220g, and a tensioning mechanism 300i to move the upper 100i between a relaxed state and a tightened state. In view of the fact that the components associated with article of footwear 10 are substantially similar in structure and function to article of footwear 10i, like reference numerals are used hereinafter and in the drawings to identify similar components, while like reference numerals, including letter suffixes, are used to identify those components that have been modified.

Upper 100i may be formed from a flexible material that forms upper 100 of fig. 1-6 to form interior space 102g and to transition upper 100 between a tightened state and a loosened state to adjust the fit of interior space 102g around the foot. Upper 100i defines an ankle opening 104 in heel portion 16 to provide access to interior space 102 g. The upper 100i also includes a midsole 217, the midsole 217 extending around the periphery of the upper 100i and having an inner surface opposite the upper 100i and an outer surface opposite the outsole 210 g. In one configuration, the midsole 217 includes a locking device 350 disposed on the midsole 217. For example, the locking device 350 may include the locking device 350d of fig. 29 to 34, but it may also include any of the locking devices 350 to 350c described above and the locking device 350e described below.

As with the insole 220f of fig. 43 and 45, the insole 220g may define a corresponding cavity 240g for receiving the locking device 350 and a passage/channel for guiding the

cords

302g, 502g of the tensioning mechanism 300 i. Since the locking device 350 is attached to the midsole 217, a cavity 240g is formed in the surface of the insole 220f opposite the midsole 217. That is, the cavity 240g is formed in a top surface of the insole 220f opposite the upper 100 i. In contrast, the cavity 240 of the article of footwear 10 is formed on an opposite side (i.e., bottom surface) of the insole 220 and opposite the outsole 210 (fig. 5). A similar arrangement is shown in figures 13, 21 to 23, 36 and 46. In each of the foregoing arrangements, the locking device 350 may be positioned within the cavity 240 located on the top surface of the respective insole 220, or alternatively may be positioned within the cavity 240 located on the bottom surface of the respective insole 220. Further, the cavity 240g may be located on the bottom surface of the insole 220f, and the locking device 350 may alternatively be attached to the outsole 210g instead of the midsole 217.

The outsole 210g may also define an aperture/cavity aligned with the cavity 240g of the insole 220g to accommodate at least a portion of the locking device 350 and/or to enable viewing of a bottom surface of the locking device 350 when viewed through the ground-engaging surface 212. In other configurations, in a manner similar to that described above with respect to article of footwear 10f, insole 220g corresponds with an insert-type insole received by interior space 102g on an interior surface of midsole 217, while outsole 210g is attached to an exterior surface around the perimeter of upper 100i and an exterior surface of midsole 217.

Upper 100i of fig. 60 includes an elastic instep region 505i, a non-elastic lateral region 418i (formed from one or more non-elastic materials 400), and a non-elastic medial region 420i (formed from one or more non-elastic materials 400), where elastic instep region 505i defines lateral side 142i and medial side 143i, non-elastic lateral region 418i extends from the periphery of upper 100i at lateral side 18 to lateral side 142i of instep region 505i, and non-elastic medial region 420i extends from the periphery of upper 100i at medial side 20 to medial side 143i of instep region 505 i. Additional layers formed of one or more inelastic materials 400 may be applied over portions of the elastic instep area 505i and/or the inelastic lateral area 418i and/or the inelastic medial area 420i to provide reinforcement, aesthetic characteristics, and access for guiding portions of the lace segments 320-1g, 320-2 g.

In the example shown, upper 100i includes a series of lateral engagement features 180i disposed on inelastic lateral region 418i adjacent lateral edge 142i of elastic instep region 505i and a series of medial engagement features 190i disposed on inelastic medial region 420i adjacent medial edge 143i of elastic instep region 505 i. Similar to the engagement features 180h, 190h of the upper 100h of fig. 57, the engagement features 180i, 190i of the upper 100i of fig. 56 are associated with a loop or webbing formed of a low friction material (e.g., nylon) and attached to a respective inelastic outboard region 418i or inelastic inboard region 420 i. Lateral strap segment 320-1g and medial strap segment 320-2g of second drawstring 502g may be operatively connected to upper 100i on inelastic medial region 420i at respective attachment locations 608i adjacent medial edge 143i of elastic instep region 505 i. For example, the lateral lace segment 320-1g may extend between a first end 508g of the second cord 502g (i.e., at attachment location 608 i) and the locking device 350, and the medial lace segment 320-2g may extend between a second end 512g of the second cord 502g (i.e., at attachment location 610 i) and the locking device 350.

With continued reference to fig. 60, the lateral lace pattern of lateral lace segment 320-1g extends along lateral side 18 of upper 100i and is fed sequentially through third lateral engagement feature 180-3i and second lateral engagement feature 180-2i, across elastic instep area 505i from lateral edge 142i to medial edge 143i, and through second medial engagement feature 190-2 i. In some examples, lateral lace segment 320-1g extends through a passage defined by inelastic region 418i between locking device 350 and third lateral engagement feature 180-3 i. Upon exiting the second medial engagement feature 190-2i, the lateral lace segment 320-1g extends back across the elastic instep region 505i from the medial side edge 143i to the lateral side edge 142i, across the first lateral engagement feature 142i, and back across the elastic instep region 505i from the lateral side edge 142i to the medial side edge 143 i. Finally, lateral lace segment 320-1g is fed through first medial engagement feature 190-1i and is connected to inelastic medial region 520i of upper 100i at attachment location 608i proximate first medial engagement feature 190-1i adjacent medial edge 143i of elastic instep region 505 i. In some examples, a first end 508g of second cord 502g associated with a free end of lateral strap section 320-1g includes a mounting feature (e.g., a ball) or is tied to have a larger loop or strap diameter than a corresponding first medial engagement feature 190-1i for anchoring lateral strap section 320-1g to upper 100i at attachment location 608 i. However, lateral strap section 320-1g may be operatively connected to upper 100i at attachment location 608i using any attachment/securing technique.

The medial lace pattern of medial lace segment 320-2g extends along medial side 20 of upper 100i to a location proximate ankle opening 104, from medial edge 143i across elastic instep region 505i to lateral edge 142i, and through fourth lateral engagement feature 180-4 i. In some examples, medial strap section 320-2g extends along medial side 20 of upper 100i through the passage defined by inelastic medial region 420i and exits the corresponding passage proximate ankle opening 104 to span elastic instep region 505 i. Upon exiting fourth lateral engagement feature 180-4i, medial strap section 320-2g extends from lateral edge 142i back across elastic instep region 505i to medial edge 143i, through third medial engagement feature 190-3i, and is operatively connected to upper 100i at attachment location 610i proximate third medial engagement feature 190-3i adjacent medial edge 144i of elastic instep region 505 i. In some examples, a second end 510g of the second cord 502g associated with the free end of the medial strap section 320-2g includes a mounting feature (e.g., a ball) or is tied to have a larger loop or strap diameter than the corresponding third medial engagement feature 190-3i for anchoring the medial strap section 320-2g to the upper 100i at attachment location 608 i. However, medial strap section 320-2g may be operatively connected to upper 100i at attachment location 610i using any attachment/securing technique.

The exemplary lateral and medial lacing patterns provided by upper 100i of FIG. 60 and the patterns associated with elastic instep region 505i adjust the fit of interior space 102g around the instep and forefoot of the foot. For example, movement of the second cord 502g in the tensioning direction 504 restrains the elastic instep area 505i at a first position associated with the instep of the foot and slightly offset toward the interior 20 of the upper 100i by drawing the lateral edge 142i and the medial edge 143i toward each other in accordance with the medial lacing pattern of the medial strap section 320-2g, and also restrains the elastic instep area 505i at a second position associated with the forefoot and slightly offset toward the lateral 18 of the upper 100i by drawing the lateral edge 142i and the medial edge 143i toward each other in accordance with the lateral lacing pattern of the lateral strap section 320-1 g.

Referring to fig. 61-63, in some implementations, an article of footwear 10j includes an upper 100j, an outsole 210g attached to the upper 100j, an insole 220g, and a tensioning mechanism 300j to move the upper 100j between a relaxed state and a tightened state. In view of the fact that the components associated with article of footwear 10 are substantially similar in structure and function to article of footwear 10j, like reference numerals are used hereinafter and in the drawings to identify similar components, while like reference numerals, including letter suffixes, are used to identify those components that have been modified.

Upper 100j may be formed from a flexible material that forms upper 100 of fig. 1-6 to form interior space 102g and to transition upper 100j between a tightened state and a loosened state to adjust the fit of interior space 102g around the foot. Upper 100j defines an ankle opening 104 in heel portion 16 to provide access to interior space 102 g. The upper 100j also includes a midsole 217, the midsole 217 extending around the periphery of the upper 100j and having an inner surface opposite the upper 100j and an outer surface opposite the outsole 210 g. In one configuration, the midsole 217 includes a locking device 350 disposed on the midsole 217. For example, the locking device 350 may include the locking device 350d of fig. 29 to 34, but it may also include any of the locking devices 350 to 350c described above and the locking device 350e described below.

cords

302g, 502g of the tensioning mechanism 300 j. Since the locking device 350 is attached to the midsole 217, a cavity 240g is formed in the surface of the insole 220f opposite the midsole 217. That is, the cavity 240g is formed in a top surface of the insole 220f opposite the upper 100 j. In contrast, the cavity 240 of the article of footwear 10 is formed on an opposite side (i.e., bottom surface) of the insole 220 and opposite the outsole 210 (fig. 5). A similar arrangement is shown in figures 13, 21 to 23, 36 and 46. In each of the foregoing arrangements, the locking device 350 may be positioned within the cavity 240 located on the top surface of the respective insole 220, or alternatively may be positioned within the cavity 240 located on the bottom surface of the respective insole 220. Further, the cavity 240g may be located on the bottom surface of the insole 220f, and the locking device 350 may alternatively be attached to the outsole 210g instead of the midsole 217.

FIG. 63 illustrates a pattern of upper 100j that provides a lateral lacing pattern and a medial lacing pattern that operate to adjust the fit of interior space 102g around the instep and forefoot of a foot. Exemplary upper 100j includes an elastic instep region 505j, an elastic forefoot region 507j, and a non-elastic region 450, wherein non-elastic region 450 is disposed between elastic instep region 505j and elastic forefoot region 507j and is disposed around elastic instep region 505j and elastic forefoot region 507 j. Additional layers formed of one or more non-elastic materials 400 may be applied over portions of elastic lateral region 418j and elastic medial region 420j to provide reinforcement, aesthetic properties, and pathways 509 for guiding portions of lace segments 320-1g, 320-2 g. Elastic forefoot region 507j extends medially from the midfoot portion of upper 100j at lateral side 18 to cover the top of a foot worn in interior space 102 g. Elastic forefoot region 507j includes a respective lateral edge 142j and a respective medial edge 144 j. The elastic instep region 505j covers the instep of the foot worn in the interior space 102g near the ankle opening 104 and extends from the instep to the midfoot to cover the top and medial sides of the foot worn in the interior space 102 g. The elastic instep area 505j includes a respective lateral edge 143j and a respective medial edge 145 j.

In some configurations, lateral strap section 320-1g is arranged to pass through a series of lateral engagement features 180j and a series of forefoot medial engagement features 191j according to a forefoot lacing pattern. In the illustrated example, three forefoot lateral engagement features 180j are disposed on the inelastic region 450 adjacent the lateral edge 142j of the elastic forefoot region 507j, and two forefoot medial engagement features 190j are disposed on the inelastic region 450 adjacent the medial edge 142j of the elastic forefoot region 507 j. In another aspect, medial lace segment 320-2g is arranged to pass through a series of instep lateral engagement features 181j and one or more instep medial engagement features 191j according to an instep wearing pattern. In the illustrated example, two instep lateral engagement features 181j are provided on the inelastic region 450 adjacent the lateral edge 143j of the elastic instep region 505j, and one instep medial engagement feature 191j is provided on the inelastic region 450 adjacent the medial edge 145j of the elastic instep region 405 j. Similar to the engagement features 180h, 190h of the upper 100h of FIG. 57, the engagement features 180j, 181j, 190j, 191j of the upper 100j of FIG. 63 are associated with respective loops or webbing formed of a low friction material (e.g., nylon) and attached to the inelastic region 450. Lateral strap section 320-1g and medial strap section 320-2g of second drawstring 502g may be operatively connected to upper 100j at respective attachment locations on inelastic region 450 adjacent medial side edge 144j of elastic forefoot region 507j and lateral side edge 143j of elastic instep region 505 j. For example, the lateral lace segment 320-1g may extend between the first end 508g of the second cord 502g and the locking device 350, and the medial lace segment 320-2g may extend between the second end 512g of the second cord 502g and the locking device 350.

With continued reference to fig. 63, the forefoot lacing pattern of lateral strap section 320-1g extends along lateral side 18 of upper 100j and is fed through third forefoot lateral engagement feature 180j, extends medially along lateral edge 142j of elastic forefoot region 507j, and extends through second forefoot lateral engagement feature 180 j. Upon exiting second forefoot lateral engagement feature 180j, lateral strap section 320-1g extends from lateral edge 142j across elastic forefoot region 507j to medial edge 143j, across second forefoot medial engagement feature 190j, and from medial edge 143j back across elastic forefoot region 507j to lateral edge 142 j. Finally, lateral strap section 320-1g is fed through first forefoot lateral engagement feature 180j, across elastic forefoot region 507j from lateral edge 142j to medial edge 143j, through first forefoot medial engagement feature 190j, and is operatively connected to inelastic region 450 of upper 100j at an attachment location proximate first forefoot medial engagement feature 190j adjacent medial edge 144j of elastic forefoot region 507 j.

The instep lace pattern of medial strap section 320-2g extends along medial side 20 of upper 100j, from medial edge 145j across elastic instep region 505j to lateral edge 143j, and through second instep-side engagement feature 181 j. In some examples, medial strap section 320-2g extends along medial side 20 of upper 100j through the passage defined by inelastic region 450 and exits the corresponding passage proximate ankle opening 104 to span elastic instep region 505 j. Upon exiting the second instep lateral engagement feature 181j, the medial strap section 320-2g extends from the lateral edge 143j back across the resilient instep region 505j to the medial edge 145j, across the forefoot medial engagement feature 191j, from the medial edge 145j across the resilient instep region 505j to the lateral edge 143j, and through the first instep lateral engagement feature 181j to operatively connect to the upper 100j at an attachment location proximate the first instep lateral engagement feature 181j adjacent the lateral edge 143j of the resilient instep region 505 j.

The exemplary forefoot lacing and instep lacing patterns provided by upper 100j of fig. 60 and the patterns associated with elastic instep area 505j and elastic forefoot area 507j adjust the fit of interior space 102 around the instep and forefoot of the foot. For example, movement of the second cord 502g in the tensioning direction 504 restrains the elastic instep area 505j by drawing the lateral and

medial edges

143j and 145j toward each other according to the instep-lacing pattern of the medial strap section 320-2 g. At the same time, movement of second cord 502g in tensioning direction 504 restrains resilient forefoot region 507j by drawing lateral edge 142j and medial edge 144j toward one another according to the forefoot lacing pattern of lateral strap segment 320-1 g.

Referring to fig. 64-66, in some implementations, an article of footwear 10k includes an upper 100k, an outsole 210g attached to the upper 100k, an insole 220g, and a tensioning mechanism 300k to move the upper 100k between a relaxed state and a tightened state. In view of the fact that the components associated with article of footwear 10 are substantially similar in structure and function to article of footwear 10k, like reference numerals are used hereinafter and in the drawings to identify similar components, while like reference numerals, including letter suffixes, are used to identify those components that have been modified.

Upper 100k may be formed from a flexible material that forms upper 100 of fig. 1-6 to form interior space 102g and to transition upper 100k between a tightened state and a loosened state to adjust the fit of interior space 102g around the foot. Upper 100k defines an ankle opening 104 in heel portion 16 to provide access to interior space 102 g. The upper 100k also includes a midsole 217, the midsole 217 extending around the periphery of the upper 100k and having an inner surface opposite the upper 100k and an outer surface opposite the outsole 210 g. In one configuration, the midsole 217 includes a locking device 350 disposed on the midsole 217. For example, the locking device 350 may include the locking device 350d of fig. 29 to 34, but it may also include any of the locking devices 350 to 350c described above and the locking device 350e described below.

cords

302g, 502g of the tensioning mechanism 300 k. Since the locking device 350 is attached to the midsole 217, a cavity 240g is formed in the surface of the insole 220f opposite the midsole 217. That is, the cavity 240g is formed in a top surface of the insole 220f opposite the upper 100 k. In contrast, the cavity 240 of the article of footwear 10 is formed on an opposite side (i.e., bottom surface) of the insole 220 and opposite the outsole 210 (fig. 5). A similar arrangement is shown in figures 13, 21 to 23, 36 and 46. In each of the foregoing arrangements, the locking device 350 may be positioned within the cavity 240 located on the top surface of the respective insole 220, or alternatively may be positioned within the cavity 240 located on the bottom surface of the respective insole 220. Further, the cavity 240g may be located on the bottom surface of the insole 220f, and the locking device 350 may alternatively be attached to the outsole 210g instead of the midsole 217.

The outsole 210g may also define an aperture/cavity aligned with the cavity 240g of the insole 220g to accommodate at least a portion of the locking device 350 and/or to enable viewing of a bottom surface of the locking device 350 when viewed through the ground-engaging surface 212. In other configurations, in a manner similar to that described above with respect to article of footwear 10f, insole 220g corresponds with an insert-type insole received by interior space 102g on an interior surface of midsole 217, while outsole 210g is attached to an exterior surface around the perimeter of upper 100k and to an exterior surface of midsole 217.

Fig. 66 shows upper 100k, upper 100k including an elastic instep region 505k, a non-elastic lateral region 418k (formed from one or more non-elastic materials 400), and a non-elastic medial region 420k (formed from one or more non-elastic materials 400), where elastic instep region 505k defines lateral edge 142k and medial edge 144k, where non-elastic lateral region 418k extends from the periphery of upper 100k at lateral side 18 to lateral edge 142k of instep region 505k, and non-elastic medial region 420k extends from the periphery of upper 100k at medial side 20 to medial edge 144k of instep region 505 k. In the example shown, elastic instep region 505k is offset slightly toward lateral side 18 of upper 100k such that inelastic medial region 420k extends over medial side 20 of the foot and a portion of the instep. Additional layers of one or more inelastic materials 400 may be applied over portions of inelastic outer region 418k and inelastic inner region 420k to provide reinforcement, aesthetic characteristics, and a passageway for guiding portions of the second cord 502 g. The second pull cord 502g may comprise a continuous loop of cord operatively connecting the

free end portions

508g, 512g together at any location.

In the example shown, upper 100k includes a series of lateral engagement features 180k disposed on inelastic lateral region 418k adjacent lateral edge 142k of elastic instep region 505k and a series of medial engagement features 190k disposed on inelastic medial region 420k adjacent medial edge 144k of elastic instep region 505 k. Although the series of lateral engagement features 180k and the series of medial engagement features 190k each include three

engagement features

180k, 190k, the series of lateral engagement features 180k and the series of medial engagement features 190k each may include more or less than three

engagement features

180k, 190 k. Similar to the engagement features 180h, 190h of the upper 100h of fig. 55, the engagement features 180k, 190k of the upper 100k of fig. 58 are associated with a loop or webbing formed of a low friction material (e.g., nylon) and attached to the respective inelastic outboard region 418k or inelastic inboard region 420 k.

The

example uppers

100g, 100h, 100i, 100j of fig. 52, 57, 60, and 63 provide two lacing patterns (i.e., lateral and medial lacing patterns), while the upper 100k of fig. 66 provides one of the following lacing patterns for the second drawstring 502 g: the pattern extends along lateral side 18 of upper 100k, through third lateral engagement feature 180k, across elastic instep region 505k from lateral edge 142k to medial edge 144k, and through third medial engagement feature 190 k. In some examples, the second pull cord 502g extends through a passageway defined by the inelastic outer side region 418k between the locking device 350 and the third outer side engagement feature 180 k. Upon exiting the third medial engagement feature 190k, the second pull cord 502k travels across the elastic instep region 505k in a zigzag fashion to feed through the second lateral engagement feature 180k, the second medial engagement feature 190k, the first lateral engagement feature 180k, and the first medial engagement feature 190k in sequence before extending inwardly across the inelastic medial region 420k and extending through the guide member 192k provided on the elastic medial region 420k to guide the second pull cord 502k back to the locking device 350. The second cord 502k may extend along the medial side 18 of the upper 100k from the guide member 192k through a corresponding passageway defined by the upper 100k to the locking device 350.

Second lace segment 320-2f is continuously zigzag advanced across throat opening 140f to be sequentially fed through fourth lateral engagement feature 180-4, third medial engagement feature 190-3, second lateral engagement feature 180-2, and first medial engagement feature 190-1 before being operatively connected to first lace segment 320-1f at a final corresponding free end 508f, 510 f.

Referring to fig. 67-70, in some implementations, any of the articles of footwear 10-10 k may include a wedge-shaped locking device 350e to at least limit movement of the drawstring 302 in the slack direction 306. Although any of the articles of footwear 10-10 k may include the locking device 350e, it will be described with reference to the footwear 10g of fig. 48-54 as shown in fig. 71 that the locking device 350e release mechanism 352e may transition the locking device 350e from the locked state to the unlocked state to allow movement of the drawstring 302 in both

directions

304, 306, and that the release mechanism 352e, when attached to the footwear 10g as shown in fig. 71, may extend in a direction away from the ground-contacting surface 212. For example, the release mechanism 352e may include a release wire for transitioning the locking device 350e from the locked state to the unlocked state when the release wire 352e is pulled. A release wire 352e may be attached to the locking device 350e at the first end 354e to move the locking device 350e from the locked state to the unlocked state when the exposed second end 356e receives a predetermined amount of force. For example, the second end 356e of the release wire 352e may be located near the slack grip 314g such that the slack grip 314g may then be pulled 324g such that the release wire 352e moves the locking device 350e to the unlocked state.

In some implementations, locking device 350e or cord lock is elongated and is disposed on an exterior surface of upper 100g, such as along a heel end of upper 100g (fig. 71), however, locking device 350e may be disposed along lateral side 18 or medial side 20 at or near ankle opening 104. Locking device 350e includes a longitudinal axis that may be substantially perpendicular to ground contacting surface 212 when positioned on upper 100 g. Although locking device 350e is depicted and described as being disposed on an exterior surface of upper 100g, locking device 350e may be positioned and used in place of any of the aforementioned locking devices 350-350 d.

The heel end of the upper 100g may include a foam receptacle or other shell 511 disposed thereon that receives and retains the locking device 350e on the upper 100g at the heel end at the foam receptacle or shell 511. In other examples, locking device 350e may be disposed on a foam pad 513 attached to the heel end of upper 100 g. In other configurations, locking device 350e is disposed in sole structure 200 between the insole and the outsole (i.e., within a corresponding cavity formed in the insole and/or outsole 210). In these examples, the locking device 350e may be attached to the bottom surface of the midsole 217. Similarly, a locking device 350e may be disposed within the interior space 102g of the shoe 10g, with the insert insole received by the interior space 102 over the locking device 350 e. Here, the insole may include a cavity/recess to receive the locking device 350 e. Implementations will be described herein with reference to locking device 350e disposed/mounted on an exterior surface of upper 100-100 g along a heel end of upper 100-100 g.

In some implementations, the locking device 350e includes a housing 360e and a locking member or latch member 380e slidably disposed within the housing 360e and enclosed by a cover 368e releasably secured to the housing 360 e. Fig. 68 provides an exploded view of the locking device 350e of fig. 67, showing the locking member 380e and the cover 368e removed from the housing 360 e. The shell 360e defines a length that extends between a first end 361e opposite the ankle opening 104 of the shoe 10g and a second end 363e opposite the outsole 210g of the shoe 10g when the shell 360e is disposed outside of the upper 100g along the heel end of the shoe 10 g. Housing 360e includes a base portion 362e having a cord receiving surface 364e and a mounting surface 366e, with mounting surface 366e being disposed on an opposite side of base portion 362e from cord receiving surface 364e and opposite an exterior surface of upper 100 e. The cover 368e opposes the cord receiving surface 364e of the base portion 362e to define a locking member cavity 370e between the cover 368e and the base portion 362e, the locking member cavity 370e being configured to receive the locking member 380e and the draw cord 302. In some configurations, the locking member cavity 370e is bounded by a first engagement surface or lock surface 371e (fig. 69 and 70) and a second engagement surface or lock surface 372e (fig. 69 and 70) that converge toward one another such that the locking member cavity 370e is associated with a wedge-shaped configuration that tapers toward the second end 363e of the housing 360 e. Thus, the first and

second engagement surfaces

371e and 372e include respective sidewalls of the housing 360e that converge toward one another and extend between the cover 368e and the cord-receiving surface 364e of the base portion 362e to define the locking member cavity 370 e.

The pull cord 302 may define a continuous loop of cord that extends through the locking member cavity 370e and includes a first portion 321 that extends along the first engagement surface 371 and a second portion 323 that extends along the second engagement surface 372 e. The pull cord 302 (e.g., first portion 321 and second portion 323) exits from respective slots 392 (fig. 69 and 70) formed through opposing sidewalls of the housing 360e proximate the first end 361e to define a first length 318 extending around the tongue 110 near or above the instep of the wearer, and exits from respective slots 392 (fig. 69 and 70) formed through opposing sidewalls of the housing 360e proximate the second end 363e to define a second length 320. When locking device 360e is coupled to upper 100g of article of footwear 10g of fig. 48-54, fig. 69 and 70 illustrate that pull cord 302 defines lateral lace segment 320-1g along first portion 321 of second length 320 and second portion 323 of pull cord 302 along second length 320 defines medial lace segment 320-1 g.

In some implementations, the locking member 380e includes a first locking surface 381e opposite the first engagement surface 371e of the housing 360e and a second locking surface 382e opposite the second engagement surface 372e of the housing 360e when the locking member 380e is disposed within the locking member cavity 370e of the housing 360 e. In some examples, the first and

second lock surfaces

381e, 382e converge toward one another. Additionally or alternatively, the first lock surface 381e may be generally parallel to the first engagement surface 371e, and the second lock surface 382e may be generally parallel to the second engagement surface 372 e. In the example shown, the

lock surfaces

381e, 382e include protrusions or teeth that each have an angled surface to allow movement of the cord 302 in the tightening direction 304 (i.e., when a pulling force 322g is applied to the cord 302 along the first length 318) while restricting movement of the cord 302 in the loosening direction 306 by gripping the cord 302 when the locking member 380e is in the locked state. The biasing member 375e (e.g., a spring) may include a first end 374e attached to the second end 363e of the housing 360 and a second end 376e attached to the first end 384e of the locking member 380e to attach the locking member 380e to the housing 360 e.

In some implementations, the locking member 380e is slidably disposed within the housing 360e and the locking member 380e is movable between a locked position (fig. 69) associated with the locked state of the locking device 350e and an unlocked position (fig. 70) associated with the unlocked state of the locking device 350 e. In some examples, the release mechanism 352e (e.g., release wire 352e) moves the locking member 380e from a locked position (fig. 69) to an unlocked position (fig. 70). The locking member 380e may include a tab portion 386e extending from an end of the locking member 380e opposite the first end 384 e. In one configuration, the first end 354e of the release wire 352e is attached to the tab portion 386e of the locking member 380 e. The tab portion 386e can include a pair of retention features or recesses 388e formed in corresponding ones of the first and

second lock surfaces

381e, 382e, and the tab portion 386e selectively receives one or more retention features 369e associated with the housing 360e to retain the locking device 350e in the unlocked state. The retention features 369e associated with the housing 360e may include first and second retention features 369e disposed on opposite sides of the housing 360e, whereby the retention features 369e are biased inwardly toward the cavity 370e by respective biasing members 385 e. The retention feature 369e may be a tab integrally formed with the housing 360e such that the retention feature 369e functions as a living hinge movable between a retracted state (fig. 69) and an extended state (fig. 70).

Fig. 69 provides a top view of the locking device 350e of fig. 67 with the cover 368e removed to show the locking member 380e disposed within the cavity 370e of the housing 360e when in the locked position. In some examples, the locking member 380e is biased to the locked position. For example, fig. 69 shows the biasing member 375e, the biasing member 375e exerting a biasing force (indicated in direction 378) on the locking member 380e to urge the first end 384e of the locking member 380e toward the second end 361e of the housing 360e to bias the locking member 380e into the locked position. When in the locked position, the locking member 380e restricts movement of the draw cord 302 relative to the housing 360e by clamping the first portion 321 of the draw cord 302 between the first locking surface 381e and the first engagement surface 371e and clamping the second portion 323 of the draw cord 302 between the second locking surface 382e and the second engagement surface 372 e. Thus, when a pulling force 324g is applied to the slack grip 314g, the locked position of the locking member 380e restricts movement of the pull cord 302 in the slack direction 306. In the illustrated example, the locking member 380e allows the pull cord 302 to move when the take-up grip 311g is applied with a pulling force 322g because this direction causes the pull cord 302 to exert a force on the locking member 380e due to the generally wedge-shaped shape of the locking member 380e, thereby moving the locking member 380 to the unlocked state. When the force applied to the take-up grip 311g is released, the lock member 380 automatically returns to the locked state due to the force exerted by the biasing member 375e on the lock member 380 e.

Fig. 70 provides a top view of the locking device 350e of fig. 67 with the cover 368e removed to show the locking member 380e disposed within the cavity 370e of the housing 360e when in the unlocked position. In some examples, the release wire 352e attached to the tab portion 386e of the locking member 380e exerts a release force 398 on the locking member 380e to move the locking member 380e relative to the housing 360e away from the first and

second engagement surfaces

371e, 372 e. Here, the release force 398 is sufficient to overcome the biasing force 378 of the biasing member 375e to allow the locking member 380e to move relative to the housing 360e such that the clamping action of the first portion 321 of the pull cord 302 between the first locking surface 381e and the first engagement surface 371e and the clamping action of the second portion 323 of the pull cord 302 between the second locking surface 382e and the second engagement surface 372e are released. In some examples, the biasing force 378 causes the locking member 380e to swing back to the locked position when the release force 398 applied by the release wire 352e is released. The release wire 352e may exert a release force 398 when a sufficient or predetermined amount of tension 324g is applied to pull the release wire 352e away from the upper 100g relative to the view of FIG. 70.

When in the unlocked position, the locking member 380e allows the pull cord 302 to move relative to the housing 360e by allowing the first portion 321 of the pull cord 302 to move freely between the first locking surface 381e and the first engagement surface 371e, and allowing the second portion 323 of the pull cord 302 to move freely between the second locking surface 382e and the second engagement surface 372 e. The unlocked position of the locking member 380e allows the pull cord 302 to move in the take-up direction 304 and the relax direction 306 when a pulling

force

322g, 324g is applied to respective ones of the take-up grip 311g and the relax grip 314g, respectively. As with footwear 10 of FIGS. 1-6, discussed above, movement of cord 302 in tightening direction 304 causes second length 320 of cord 302 (i.e., lateral strap section 320-1g and medial strap section 320-2g) to decrease to contract elastic lateral region 518 and elastic medial region 520 of upper 100g, thereby moving upper 100g into a tightened state to draw interior space 102g closer together around the foot; while movement of pull cord 302 in loosening direction 306 causes second length 320 (i.e., lateral strap section 320-1g and medial strap section 320-2g) to increase to allow elastic lateral region 518 and elastic medial region 520 to return to their flat, relaxed states, thereby urging upper 100g to transition from the tightened state to the relaxed state such that the foot may be removed from interior space 102 g.

In some examples, a pulling force 324g of sufficient magnitude and/or duration applied to the release wire 352g causes the release wire 352g to apply a release force 398 (fig. 70) on the locking member 380e in a direction opposite the direction of the biasing force 378 (fig. 69) such that the locking member 380e moves relative to the housing 360e away from the

engagement surfaces

371e, 372e and toward the first end 361e of the housing 360 e. When the release force 398 moves the lock member 380e a predetermined distance from the first and

second engagement surfaces

371e, 372e of the housing 360e, at least one of the retention features 369e of the housing 360e may engage the retention feature 388e of the lock member 380 e. Here, the engagement between the retention feature 388e of the lock member 380e and the at least one retention feature 369e of the housing 360e retains the lock member 380e in the unlocked position when the pulling force 324g is released to stop the application of the release force 398. After the locking member 380e is moved the predetermined distance and the release force 398 is no longer applied, the biasing force 378 of the biasing member 375e and the force exerted on the retention features 369e by the pair of biasing members 385e lock the retention features 388e of the locking member 380e into engagement with the retention features 369e of the housing 360 e.

In some cases, a pulling force 324g associated with the first magnitude may be applied to the release wire 352e to move the locking member 380e away from the

engagement surfaces

371e, 372e a distance less than the predetermined distance such that the retention features 388e, 369e do not engage. In these situations, when it is desired to move the pull cord 302 in the slack direction 306 (e.g., by applying a pulling force 324g to the slack grip 314g) or in the tightening direction 304 (e.g., by applying a pulling force 322g to the tightening grip 311g), the pulling force 324g associated with the first magnitude may be maintained for adjusting the fit of the interior space 102g around the foot. When the desired fit of the interior space 102g around the foot is achieved, the pulling force 358g may be released to swing the locking member 380e back to the locked position so that movement of the pull cord 302 in the slack direction is limited and the desired fit may be maintained. It should be noted that the pull cord 302 can move in the tightening direction even when the locking member 380e is in the locked position. Thus, once the pulling force 324g is released and the desired degree of fitness is achieved, the locking member 380e automatically maintains the desired degree of fitness by locking the position of the cord 302 relative to the housing 360 e.

In other instances, a pulling force 358g associated with a second magnitude greater than the first magnitude may be applied to the release wire 352e to move the locking member 380g a predetermined distance from the

engagement surfaces

371e, 372e to engage the respective retention features 369e, 388 e. Engagement of the retention features 369e, 388e is achieved by providing the retention feature 369e with a tapered edge opposite the locking member 380e, thereby allowing the locking member 380e to more easily move the retention feature 369e in accordance with the biasing force exerted by the biasing member 385e on the retention feature 369e when the release wire 352e is pulled a predetermined distance. In these circumstances, when the pulling force 358g is released, the engagement between the respective retention features 369e, 388e retains the locking member 380e in the unlocked position.

Locking member 380e returns to the locked position when a tightening force is applied to lateral strap section 320-1g and medial strap section 320-2 g. That is, as force is applied to lateral strap section 320-1g and medial strap section 320-2g, these sections 320-1g and 320-2g are placed in tension, thereby applying force on biasing member 385e via retention feature 369e as these sections 320-1g and 320-2g pass through a portion of retention feature 369e, as shown in fig. 69 and 70. In this manner, retention features 369e compress biasing member 385e, and thus move retention features 369e away from each other and apart from retention features 388e of lock member 380e, thereby allowing biasing member 375e to return lock member 380e to the locked position. In some implementations, the locking device 350e replaces the locking device 350b of fig. 17-23.

The following clauses provide exemplary configurations of an article of footwear and a cord lock according to the principles of the present disclosure.

Clause 1: an article of footwear, comprising: an upper defining an interior space; a first cord movable in a tightening direction to move the upper to a tightened state and movable in a loosening direction to move the upper to a loosened state; a tightening grip operable to move in a first direction away from the upper to move the first cord in the tightening direction; a cord lock operable in a locked state to restrict movement of the first cord in the slack direction and operable in an unlocked state to allow movement of the first cord in the slack direction; and a release grip operable to move in a second direction away from the upper to move the cord lock from the locked state to the unlocked state, the release grip and the tightening grip being separated.

Clause 2: the article of footwear of clause 1, wherein the cord lock is disposed away from the tightening grip and the release grip.

Clause 3: the article of footwear of any of the preceding clauses, further comprising a sole structure attached to the upper.

Clause 4: the article of footwear of clause 3, wherein the tightening grip extends from the upper and the cord lock is disposed within the sole structure.

Clause 5: the article of footwear of clause 4, wherein the release grip extends from the upper.

Clause 6: the article of footwear of clause 3, wherein the release grip extends from the upper and the cord lock is disposed within the sole structure.

Clause 7: the article of footwear of clause 3, wherein the sole structure includes an insole and an outsole.

Clause 8: the article of footwear of clause 7, wherein the insole includes a cavity, the cord lock being disposed within the cavity.

Clause 9: the article of footwear of clause 8, wherein the cavity is opposite the outsole.

Clause 10: the article of footwear of clause 8, wherein the cavity is opposite the upper.

Clause 11: the article of footwear of clause 10, further comprising a midsole attached to the upper, the cavity being opposite the midsole.

Clause 12: the article of footwear of clause 11, wherein the cord lock is attached to the midsole.

Clause 13: the article of footwear of any of the preceding clauses wherein the tightening grip and the release grip are disposed on opposite sides of an ankle opening of the upper.

Clause 14: the article of footwear of any of the preceding clauses, wherein the release grip extends from a heel region of the upper.

Clause 15: the article of footwear of any of the preceding clauses, further comprising a second cord having a first portion forming the cinch grip and a second portion received by the cord lock.

Clause 16: the article of footwear of clause 15, wherein the effective length of the second strand increases as the tightening grip moves away from the upper.

Clause 17: the article of footwear of clause 16, wherein the effective length of the first strand decreases as the tightening grip moves away from the upper.

Clause 18: the article of footwear of clause 17, wherein a portion of the first cord is retracted within the cord lock when the tightening grip is moved away from the upper.

Clause 19: the article of footwear of clause 1, wherein an effective length of the first strand decreases as the tightening grip moves away from the upper.

Clause 20: the article of footwear of clause 1, wherein a portion of the first cord is retracted within the cord lock when the tightening grip is moved away from the upper.

Clause 21: the article of footwear of any of the preceding clauses, wherein the first direction is different than the second direction.

Clause 22: an article of footwear, comprising: an upper defining an interior space; a first cord portion movable in a first tightening direction to move the upper to a tightened state and a first loosening direction to move the upper to a loosened state; a second rope portion movable in a second tightening direction to move the first rope portion in the first tightening direction and movable in a second loosening direction when the first rope portion is moved in the first loosening direction; and a cord lock operable in a locked state to restrict movement of the first cord portion in the first slack direction and to restrict movement of the second cord portion in the second slack direction, and operable in an unlocked state to allow movement of the first cord portion in the first slack direction and to allow movement of the second cord portion in the second slack direction.

Clause 23: the article of footwear of clause 22, wherein the second strand portion forms a tightening grip that is formed as a loop and is operable to move in a first direction away from the upper to move the second strand portion in the second tightening direction.

Clause 24: the article of footwear of any of the preceding clauses, further comprising a release grip operable to move away from the upper in a second direction to move the cord lock from the locked state to the unlocked state.

Clause 25: the article of footwear of clause 24, wherein the release grip and the tightening grip are separate.

Clause 26: the article of footwear of clause 24 or clause 25, wherein the first direction is different than the second direction.

Clause 27: the article of footwear of clause 24, wherein the cord lock is disposed away from the tightening grip and the release grip.

Clause 28: the article of footwear of any of the preceding clauses, further comprising a sole structure attached to the upper.

Clause 29: the article of footwear of clause 28, wherein the cord lock is disposed within the sole structure.

Clause 30: the article of footwear of clause 28 or clause 29, wherein the sole structure comprises an insole and an outsole.

Clause 31: the article of footwear of clause 30, wherein the insole includes a cavity, the cord lock being disposed within the cavity.

Clause 32: the article of footwear of clause 31, wherein the cavity is opposite the outsole.

Clause 33: the article of footwear of clause 31, wherein the cavity is opposite the upper.

Clause 34: the article of footwear of clause 33, further comprising a midsole attached to the upper, the cavity being opposite the midsole.

Clause 35: the article of footwear of clause 34, wherein the cord lock is attached to the midsole.

Clause 36: the article of footwear of any of the preceding clauses, wherein an effective length of the second cord portion increases when the second cord portion moves in the second tightening direction.

Clause 37: the article of footwear of any of the preceding clauses, wherein an effective length of the first cord portion decreases when the first cord portion moves in the first tightening direction.

Clause 38: the article of footwear of any of the preceding clauses, wherein a portion of the first strand portion is retracted within the strand lock when the first strand portion is moved in the first tightening direction.

Clause 39: the article of footwear of any of the preceding clauses, wherein a portion of the second strand portion is retracted within the strand lock when the second strand portion is moved in the second slack direction.

Clause 40: the article of footwear of any of the preceding clauses, wherein the first strand portion and the second strand portion are portions of the same strand.

Clause 41: a cord lock mechanism, the cord lock mechanism comprising: a housing defining a cavity; a spool disposed within the cavity and including a first annular groove operable to receive a first cord and a second annular groove operable to receive a second cord, the spool rotatable in a first direction relative to the housing to pay out a first portion of the first cord from the housing and wind a first portion of the second cord within the second annular groove, and the spool rotatable in a second direction relative to the housing to pay out a second portion of the second cord from the housing and wind a second portion of the first cord within the first annular groove; and a first lock pawl operable between a locked state in which rotation of the spool relative to the housing in the second direction is restricted and an unlocked state in which rotation of the spool relative to the housing in the second direction is permitted.

Clause 42: the cord lock mechanism of clause 41, wherein the first portion of the first cord and the second portion of the first cord are portions of the same cord.

Clause 43: the cord lock mechanism of any one of the preceding clauses, wherein the first portion of the second cord and the second portion of the second cord are portions of the same cord.

Clause 44: the cord lock mechanism of any one of the preceding clauses, wherein the length of the first portion of the first cord is equal to the length of the first portion of the second cord.

Clause 45: the cord lock mechanism of any one of the preceding clauses, wherein the length of the second portion of the first cord is equal to the length of the second portion of the second cord.

Clause 46: the cord lock mechanism of any one of the preceding clauses, wherein the first lock pawl, when in the locked state, allows the spool to rotate in the first direction relative to the housing.

Clause 47: the cord lock mechanism of any one of the preceding clauses, wherein the first lock pawl allows rotation of the spool in the first direction relative to the housing when in the unlocked state.

Clause 48: the cord lock mechanism of any one of the preceding clauses, wherein the first lock pawl comprises a series of first teeth that engage the spool when the first lock pawl is in the locked state.

Clause 49: the cord lock mechanism of clause 48, wherein the spool comprises a series of second teeth that matingly receive a series of first teeth when the first lock pawl is in the locked state.

Clause 50: the cord lock mechanism of clause 49, wherein the series of second teeth are formed on an inner surface of the spool.

Clause 51: the cord lock mechanism of any one of the preceding clauses, wherein the first lock pawl is rotatably supported by the housing within the cavity.

Clause 52: the cord lock mechanism of any one of the preceding clauses, wherein the first locking pawl is biased to the locked state.

Clause 53: the cord lock mechanism of any one of the preceding clauses, wherein the first locking pawl is biased to the locked state by a biasing member.

Clause 54: the cord lock mechanism of clause 53, wherein the biasing member is a spring.

Clause 55: the cord lock mechanism of any one of the preceding clauses, further comprising a second locking pawl supported within the housing to be rotatable between a first position spaced from the spool and a second position in contact with a control surface of the spool.

Clause 56: the cord lock mechanism of clause 55, wherein the second locking pawl is rotatably supported by the housing.

Clause 57: the cord lock mechanism of clause 55, wherein the second locking pawl is rotatably supported by the first locking pawl.

Clause 58: the cord lock mechanism of clause 55, wherein the second locking pawl is biased into the second position.

Clause 59: the cord lock mechanism of clause 55, wherein the second lock pawl is biased into the second position by a biasing member.

Clause 60: the cord lock mechanism of clause 59, wherein the biasing member is a spring.

Clause 61: the cord lock mechanism of clause 55, wherein the control surface is formed on an inner surface of the spool.

Clause 62: the cord lock mechanism of any one of the preceding clauses, wherein the housing comprises at least one flange extending from the housing.

Clause 63: the cord lock mechanism of clause 62, wherein the at least one flange comprises at least one aperture formed therethrough.

Clause 64: an article of footwear incorporating a cord lock mechanism according to any of the preceding clauses.

Clause 65: the article of footwear of clause 64, wherein the cord lock mechanism is disposed within an insole of the article of footwear.

Clause 66: the article of footwear of clause 64, wherein the cord lock mechanism is attached to an upper of the article of footwear.

Clause 67: a cord lock mechanism comprising: a housing defining a cavity; a spool disposed within the cavity and receiving a first cord and a second cord; and a first lock pawl operable between an unlocked state spaced apart from the spool to allow rotation of the spool relative to the housing in a first direction and a second direction opposite the first direction and a locked state engaging an inner surface of the spool to restrict rotation of the spool relative to the housing in the second direction.

Clause 68: the cord lock mechanism of clause 67, wherein the spool comprises a first annular groove that receives the first cord and a second annular groove that receives the second cord.

Clause 69: the cord lock mechanism of clause 68, wherein the spool is operable to pay out the first portion of the first cord from the housing and wind the first portion of the second cord within the second annular groove when rotated in the first direction.

Clause 70: the cord lock mechanism of any one of the preceding clauses, wherein the spool is operable to pay out the second portion of the second cord from the housing and wind the second portion of the first cord within the first annular groove when rotated in the second direction.

Clause 71: the cord lock mechanism of clause 70, wherein the portion of the first cord and the second portion of the first cord are portions of the same cord.

Clause 72: the cord lock mechanism of any one of clauses 70 or 71, wherein the first portion of the second cord and the second portion of the second cord are portions of the same cord.

Clause 73: the cord lock mechanism of any one of clauses 70-72, wherein the length of the first portion of the first cord is equal to the length of the first portion of the second cord.

Clause 74: the cord lock mechanism of any one of clauses 70-73, wherein the length of the second portion of the first cord is equal to the length of the second portion of the second cord.

Clause 75: the cord lock mechanism of any one of the preceding clauses, wherein the first lock pawl, when in the locked state, allows the spool to rotate in the first direction relative to the housing.

Clause 76: the cord lock mechanism of any one of the preceding clauses, wherein the first pawl engages along the teeth of the inner surface when the first pawl is in the locked state and the spool is rotated in the first direction.

Clause 77: the cord lock mechanism of any one of the preceding clauses, wherein the first lock pawl comprises a series of first teeth that engage the spool in the locked state.

Clause 78: the cord lock mechanism of clause 77, wherein the spool includes a series of second teeth cooperatively receiving the series of first teeth when the first lock pawl is in the locked state, the series of second teeth being formed on the inner surface of the spool.

Clause 79: the cord lock mechanism of any one of the preceding clauses, wherein the first lock pawl is rotatably supported by the housing within the cavity.

Clause 80: the cord lock mechanism of any one of the preceding clauses, wherein the first locking pawl is biased to the locked state.

Clause 81: the cord lock mechanism of any one of the preceding clauses, wherein the first locking pawl is biased to the locked state by a biasing member.

Clause 82: the cord lock mechanism of clause 81, wherein the biasing member is a spring.

Clause 83: the cord lock mechanism of any one of the preceding clauses, further comprising a second locking pawl supported within the housing to be rotatable between a first position spaced from the spool and a second position in contact with a control surface of the spool.

Clause 84: the cord lock mechanism of clause 83, wherein the second locking pawl is rotatably supported by the housing.

Clause 85: the cord lock mechanism of clause 83, wherein the second locking pawl is rotatably supported by the first locking pawl.

Clause 86: the cord lock mechanism of clause 83, wherein the second lock pawl is biased to the second position.

Clause 87: the cord lock mechanism of clause 83, wherein the second lock pawl is biased to the second position by a biasing member.

Clause 88: the cord lock mechanism of clause 87, wherein the biasing member is a spring.

Clause 89: the cord lock mechanism of clause 83, wherein the control surface is formed on the inner surface of the spool.

Clause 90: the cord lock mechanism of any one of the preceding clauses, wherein the housing comprises at least one flange extending from the housing.

Clause 91: the cord lock mechanism of clause 90, wherein the at least one flange comprises at least one aperture formed therethrough.

Clause 92: an article of footwear incorporating a cord lock mechanism according to any of the preceding clauses.

Clause 93: the article of footwear of clause 92, wherein the cord lock mechanism is disposed within an insole of the article of footwear.

Clause 94: the article of footwear of clause 92, wherein the cord lock mechanism is attached to an upper of the article of footwear.

Clause 95: a cord lock for a cord, the cord lock comprising: a housing comprising a first engagement surface and a second engagement surface that converge toward one another; a lock member slidably disposed in the housing and movable between a locked condition and an unlocked condition, and including first and second lock surfaces converging toward one another, the first lock surface operable to clamp a first portion of the cord between the first engagement surface and the first lock surface in the locked condition, and the second lock surface operable to clamp a second portion of the cord between the second engagement surface and the second lock surface in the locked condition to restrict movement of the cord in a first direction relative to the housing; and a biasing member operable to apply a biasing force and bias the lock member to the locked state.

Clause 96: the cord lock of clause 95, wherein the biasing member is a spring.

Clause 97: the cord lock of clause 96, wherein the spring is a coil spring.

Clause 98: the cord lock of any of the preceding clauses, further comprising a release wire attached to the lock member and operable to move the lock member from the locked state to the unlocked state when the release wire is applied with a pulling force in an unlocking direction that exceeds the biasing force of the biasing member.

Clause 99: the cord lock of clause 98, wherein the release wire is attached to the lock member at an end of the lock member opposite the biasing member.

Clause 100: the cord lock of any of the preceding clauses wherein the lock member includes a retaining portion operable to selectively engage the housing and retain the lock member in the unlocked state.

Clause 101: the cord lock of clause 100, wherein the retaining portion is disposed at an end of the lock member opposite the biasing member.

Clause 102: the cord lock of clause 100, wherein the retention feature is formed on a tab portion of the lock member.

Clause 103: the cord lock of clause 102, wherein the tab portion is movable relative to the lock member between a resting state and a flexed state.

Clause 104: the cord lock of clause 103, wherein the tab portion is biased to the resting state.

Clause 105: the cord lock of clause 103, wherein the tab portion is operable to move from the rest state to the flexed state to separate the retention portion from the housing.

Clause 106: the cord lock of clause 105, further comprising a release wire attached to the tab portion, the release wire operable to move the tab portion from the rest state to the flexed state.

Clause 107: the cord lock of clause 106, wherein the release wire is operable to move the lock member from the locked state to the unlocked state when the release wire is applied with a pulling force in an unlocking direction that exceeds the biasing force of the biasing member.

Clause 108: the cord lock of clause 95, wherein the lock member includes first and second recesses operable to selectively receive first and second retaining portions of the housing to retain the lock member in the unlocked state.

Clause 109: the cord lock of clause 108, wherein the first retaining portion and the second retaining portion are movable between an extended state and a retracted state.

Clause 110: the cord lock of clause 109, wherein the first and second retaining portions are biased to the extended state by first and second biasing members.

Clause 111: the cord lock of clause 110, wherein the first biasing member and the second biasing member are springs.

Clause 112: the cord lock of clause 110, wherein the first biasing member and the second biasing member are coil springs.

Clause 113: the cord lock of clause 109, wherein the first retaining portion and the second retaining portion are integrally formed with the housing.

Clause 114: the cord lock of clause 109, wherein the first and second retaining portions act as living hinges movable between the extended and retracted states.

Clause 115: the cord lock of clause 109, wherein the first and second retaining portions are in the retracted state when received within the first and second grooves, respectively.

Clause 116: the cord lock of any of the preceding clauses, wherein at least one of the first and second lock surfaces comprises a protrusion operable to grip a cord when the lock member is in the locked state.

Clause 117: the cord lock of any of the preceding clauses, wherein the protrusion is angled relative to a longitudinal axis of the lock member to grip a cord and restrict movement of the cord in the first direction relative to the housing when the lock member is in the locked state.

Clause 118: the cord lock of any of the preceding clauses, wherein the cord is movable in a second direction opposite the first direction when the lock member is in the locked state or the unlocked state.

Clause 119: an article of footwear incorporating a cord lock according to any of the preceding clauses.

Clause 120: the article of footwear of clause 119, wherein the article of footwear includes a sole structure and an upper.

Clause 121: the article of footwear of clause 120, wherein the cord lock of any of the preceding clauses is at least partially disposed within a cavity formed in the sole structure.

Clause 122: the article of footwear of clause 120, wherein the cord lock is attached to the upper.

Clause 123: an article of footwear comprising: an upper; a tightening grip extending from the upper and configured as a loop; a pull cord coupled with the tensile grip and operable to move the upper to one of a tightened state and a loosened state, the pull cord movable in a tightening direction to move the upper to the tightened state and movable in a loosening direction to move the upper to the loosened state; and a first conduit including an inner diameter greater than an outer diameter of the pull cord and receiving a portion of the pull cord therein, the first conduit operable to accommodate gathering of the pull cord when the pull cord is moved in one of the tightening direction and the loosening direction.

Clause 124: the article of footwear of clause 123, further comprising a second conduit including an inner diameter greater than an outer diameter of the drawstring and receiving a portion of the drawstring therein, the second conduit operable to accommodate gathering of the drawstring when the drawstring is moved in the other of the tightening direction and the loosening direction.

Clause 125: the article of footwear of any of the preceding clauses, further comprising a cord lock operable between a locked state that restricts movement of the draw cord in the slack direction and an unlocked state that allows movement of the draw cord in both the slack direction and the tightening direction.

Clause 126: the article of footwear of clause 125, wherein the cord lock allows the draw cord to move in the tightening direction when the cord lock is in the locked state.

Clause 127: the article of footwear of clause 125, wherein the cord lock restricts movement of the draw cord in the tightening direction when the cord lock is in the locked state.

Clause 128: the article of footwear of any of clauses 125-127, wherein the cord lock is biased to the locked state.

Clause 129: the article of footwear of any of clauses 125-128, wherein the cord lock includes a release operable to transition the cord lock from the locked state to the unlocked state.

Clause 130: the article of footwear of any of clauses 125-129, further comprising an outsole attached to the upper and including a ground-contacting surface and an inner surface disposed on an opposite side of the outsole than the ground-contacting surface, the inner surface defining a receiving area in which the cord lock is received.

Clause 131: the article of footwear of any of clauses 125-129, further comprising an outsole attached to the upper and including a ground-engaging surface and an inner surface disposed on a side of the outsole opposite the ground-engaging surface, and an insole having a footbed and a bottom surface disposed on a side of the insole opposite the footbed and opposite the inner surface of the outsole to form a cavity between the bottom surface of the insole and the inner surface of the outsole, the cord lock being disposed within the cavity between the inner surface of the outsole and the bottom surface of the insole.

Clause 132: the article of footwear of any of clauses 125-131, wherein the drawstring includes a continuous loop defining a first length between the string lock and a tightening grip and a second length between the string lock and a loosening grip, wherein movement of the drawstring in the tightening direction increases the first length and decreases the second length, and movement of the drawstring in the loosening direction decreases the first length and increases the second length.

Clause 133: the article of footwear of any of clauses 125-132, wherein the cord lock includes a housing and a lock member slidably disposed within the housing, the lock member being movable between a locked position that restricts movement of the draw cord relative to the housing and an unlocked position that allows movement of the draw cord relative to the housing.

Clause 134: the article of footwear of clause 133, wherein the lock member includes a first lock surface opposite the first engagement surface of the housing and a second lock surface opposite the second engagement surface of the housing, the lock member operable to clamp the drawstring between the first lock surface and the first engagement surface in the locked position and operable to clamp the drawstring between the second lock surface and the second engagement surface in the locked position.

Clause 135: the article of footwear of clause 134, wherein the first lock surface and the second lock surface converge.

Clause 136: the article of footwear of clause 135, wherein the first locking surface is substantially parallel to the first engagement surface and the second locking surface is substantially parallel to the second engagement surface.

Clause 137: the article of footwear of any of clauses 133-136, wherein the cord lock includes a release operable to move the lock member from the locked position to the unlocked position.

Clause 138: the article of footwear of clause 137, wherein the release is attached to the latch member to allow a force applied to the release to move the latch hook relative to the housing in a direction away from the first engagement surface and the second engagement surface.

Clause 139: the article of footwear of clause 138, wherein the housing includes a retaining portion operable to engage the lock member when the lock member is moved a predetermined distance away from the first and second engagement surfaces, the retaining portion operable to retain the lock member in the unlocked position.

Clause 140: the article of footwear of any of clauses 125-139, wherein the cord lock is biased to the locked position by a biasing member.

Clause 141: the article of footwear of clause 125, wherein the cord lock includes a housing and a spool, the spool being supported by the housing and being rotatable in a first direction relative to the housing when the cord is moved in the tightening direction and the spool being rotatable in an opposite second direction relative to the housing when the cord is moved in the loosening direction, the spool including a first annular groove configured to collect a first portion of the cord and a second annular groove configured to collect a second portion of the cord.

Clause 142: the article of footwear of clause 141, wherein the cord lock comprises: a plurality of teeth supported for common rotation with the spool and positioned circumferentially about an axis of the spool; and a first pawl supported by the housing and including a first biasing member operable to bias the first pawl into engagement with the plurality of teeth to selectively restrict rotation of the spool in the second direction.

Clause 143: the article of footwear of clause 142, wherein when the first pawl engages the plurality of teeth, the plurality of teeth are angled to allow the spool to rotate in the first direction.

Clause 144: the article of footwear of clause 142, wherein the cord lock further comprises a release configured to disengage the first pawl from the plurality of teeth to allow the spool to rotate in the second direction when the release is applied with a predetermined force that overcomes the biasing force of the first biasing member.

Clause 145: the article of footwear of clause 144, wherein the cord lock further comprises a second pawl having a second biasing member configured to bias the second pawl into engagement with a control surface associated with the spool to allow the spool to rotate in the second direction when the first pawl is disengaged from the plurality of teeth.

Clause 146: the article of footwear of clause 145, wherein the second pawl is rotatably supported by the first pawl.

Clause 147: the article of footwear of clause 141, wherein the first portion of the pull cord and the second portion of the pull cord approach the spool from opposite directions.

Clause 148: the article of footwear of any of clauses 125-129 and 132-147, wherein the cord lock is supported by an outsole attached to the upper.

Clause 149: the article of footwear of any of clauses 125-129 and 132-147, wherein the cord lock is disposed between an outsole and an insole of the footwear.

Clause 150: an article of footwear comprising: an upper; a pull cord movable in a tightening direction to move the upper to a tightened state and movable in a loosening direction to move the upper to a loosened state; a first conduit operable to receive a length of the pull cord therein to accommodate gathering of the pull cord when the pull cord is moved in one of the tightening and loosening directions, the length of the pull cord received within the first conduit being greater than the length of the first conduit when the pull cord is moved in the one of the tightening and loosening directions.

Clause 151: the article of footwear of clause 150, further comprising a second conduit operable to receive a length of the drawstring therein to accommodate gathering of the drawstring when the drawstring is moved in the other of the tightening direction and the loosening direction, the length of the drawstring received within the second conduit being greater than the length of the second conduit when the drawstring is moved in the other of the tightening direction and the loosening direction

Clause 152: the article of footwear of any of the preceding clauses, further comprising a cord lock operable between a locked state that restricts movement of the draw cord in the slack direction and an unlocked state that allows movement of the draw cord in both the slack direction and the tightening direction.

Clause 153: the article of footwear of clause 152, wherein the cord lock allows the draw cord to move in the tightening direction when the cord lock is in the locked state.

Clause 154: the article of footwear of clause 152, wherein the cord lock restricts movement of the draw cord in the tightening direction when the cord lock is in the locked state.

Clause 155: the article of footwear of any of clauses 152-154, wherein the cord lock is biased to the locked state.

Clause 156: the article of footwear of any of clauses 152-155, wherein the cord lock includes a release operable to transition the cord lock from the locked state to the unlocked state.

Clause 157: the article of footwear of any of clauses 152-156, further comprising an outsole attached to the upper and including a ground-contacting surface and an inner surface disposed on an opposite side of the outsole than the ground-contacting surface, the inner surface defining a receiving area in which the cord lock is received.

Clause 158: the article of footwear of any of clauses 152-156, further comprising an outsole attached to the upper and including a ground-engaging surface and an inner surface disposed on a side of the outsole opposite the ground-engaging surface, and an insole having a footbed and a bottom surface disposed on a side of the insole opposite the footbed and opposite the inner surface of the outsole to define a cavity between the bottom surface of the insole and the inner surface of the outsole, the cord lock being disposed within the cavity between the inner surface of the outsole and the bottom surface of the insole.

Clause 159: the article of footwear of any of clauses 152-158, wherein the drawstring includes a continuous loop defining a first length between the string lock and a tightening grip and a second length between the string lock and a loosening grip, wherein movement of the drawstring in the tightening direction increases the first length and decreases the second length, and movement of the drawstring in the loosening direction decreases the first length and increases the second length.

Clause 160: the article of footwear of any of clauses 152-159, wherein the cord lock comprises a housing and a lock member slidably disposed within the housing, the lock member being movable between a locked position that restricts movement of the draw cord relative to the housing and an unlocked position that allows movement of the draw cord relative to the housing.

Clause 161: the article of footwear of clause 160, wherein the lock member includes a first lock surface opposite the first engagement surface of the housing and a second lock surface opposite the second engagement surface of the housing, the lock member operable to clamp the drawstring between the first lock surface and the first engagement surface in the locked position, and the lock member operable to clamp the drawstring between the second lock surface and the second engagement surface in the locked position.

Clause 162: the article of footwear of clause 161, wherein the first lock surface and the second lock surface converge.

Clause 163: the article of footwear of clause 162, wherein the first locking surface is substantially parallel to the first engagement surface and the second locking surface is substantially parallel to the second engagement surface.

Clause 164: the article of footwear of any of clauses 160-163, wherein the cord lock includes a release operable to move the lock member from the locked position to the unlocked position.

Clause 165: the article of footwear of clause 164, wherein the release is attached to the latch member to allow a force applied to the release to move the latch hook relative to the housing in a direction away from the first engagement surface and the second engagement surface.

Clause 166: the article of footwear of clause 165, wherein the housing includes a retaining portion operable to engage the lock member when the lock member is moved a predetermined distance away from the first and second engagement surfaces, the retaining portion operable to retain the lock member in the unlocked position.

Clause 167: the article of footwear of any of clauses 152-166, wherein the cord lock is biased to the locked position by a biasing member.

Clause 168: the article of footwear of clause 152, wherein the cord lock includes a housing and a spool, the spool being supported by the housing and being rotatable in a first direction relative to the housing when the cord is moved in the tightening direction and the spool being rotatable in an opposite second direction relative to the housing when the cord is moved in the loosening direction, the spool including a first annular groove configured to collect a first portion of the cord and a second annular groove configured to collect a second portion of the cord.

169 th: the article of footwear of clause 168, wherein the cord lock comprises: a plurality of teeth positioned circumferentially about an axis of the spool; and a first pawl supported by the housing and including a first biasing member configured to bias the first pawl into engagement with the plurality of teeth to selectively restrict rotation of the spool in the second direction.

Clause 170: the article of footwear of clause 169, wherein the plurality of teeth are angled to allow the spool to rotate in the first direction when the first pawl engages the plurality of teeth.

Clause 171: the article of footwear of clause 169, wherein the cord lock further comprises a release configured to selectively disengage the first pawl from the plurality of teeth to allow the spool to rotate in the second direction when a predetermined force is applied to the release that overcomes the biasing force of the first biasing member.

Clause 172: the article of footwear of clause 171, wherein the cord lock further comprises a second pawl having a second biasing member configured to bias the second pawl into engagement with a control surface associated with the spool when the first pawl is disengaged from the plurality of teeth to allow rotation of the spool in the second direction.

Clause 173: the article of footwear of clause 172, wherein the second pawl is rotatably supported by the first pawl.

Clause 174: the article of footwear of clause 168, wherein the first portion of the pull cord and the second portion of the pull cord are proximate to the spool from two opposite directions.

Clause 175: the article of footwear of clauses 152-154 and 159-174, wherein the cord lock is supported by an outsole attached to the upper.

Clause 176: the article of footwear of clauses 152-154 and 159-174, wherein the cord lock is disposed between an outsole and an insole of the article of footwear.

Clause 177: an article of footwear comprising: an upper having a heel portion, an instep portion, and a forefoot portion; a tightening grip disposed at one of the instep portion and the heel portion of the upper; a slack grip disposed at the other of the instep portion and the heel portion of the upper; and a pull cord operatively connected to the tightening grip and the loosening grip, the pull cord being movable in the tightening direction to move the upper to the tightened state when the tightening grip is pulled away from the upper, and the pull cord being movable in the loosening direction to move the upper to the loosened state when the loosening grip is pulled away from the upper.

Clause 178: the article of footwear of clause 177, further comprising a cord lock operable between a locked state in which the cord lock restricts movement of the draw cord in the slack direction and an unlocked state in which the cord lock allows movement of the draw cord in both the slack direction and the tightening direction.

Clause 179: the article of footwear of clause 178, wherein the cord lock allows the draw cord to move in the tightening direction when the cord lock is in the locked state.

Clause 180: the article of footwear of clause 178, wherein the cord lock restricts movement of the draw cord in the tightening direction when the cord lock is in the locked state.

Clause 181: the article of footwear of any of clauses 178-180, wherein the cord lock is biased to the locked state.

Clause 182: the article of footwear of any of clauses 178-181, wherein the cord lock includes a release operable to transition the cord lock from the locked state to the unlocked state.

Clause 183: the article of footwear of any of clauses 178-182, further comprising an outsole attached to the upper and including a ground-engaging surface and an inner surface disposed on an opposite side of the outsole than the ground-engaging surface, the inner surface defining a receiving area in which the cord lock is received.

Clause 184: the article of footwear of any of clauses 178-182, further comprising: an outsole attached to the upper and including a ground-engaging surface and an inner surface disposed on an opposite side of the outsole than the ground-engaging surface; and an insole having a footbed and a bottom surface disposed on an opposite side of the insole from the footbed and opposite the inner surface of the outsole to define a cavity therebetween, the cord lock being disposed within the cavity between the inner surface of the outsole and the bottom surface of the insole.

Clause 185: the article of footwear of any of clauses 178-184, wherein the drawstring includes a continuous loop defining a first length between the string lock and the tightening grip and a second length between the string lock and the loosening grip, wherein movement of the drawstring in the tightening direction causes the first length to increase and the second length to decrease, and movement of the drawstring in the loosening direction causes the first length to decrease and the second length to increase.

Clause 186: the article of footwear of any of the preceding clauses, further comprising a first conduit configured to encircle a portion of the drawstring along the first length as the drawstring moves relative to the first conduit, the first conduit defining an inner diameter greater than an outer diameter of the drawstring to accommodate gathering of the drawstring as the first length increases during movement of the drawstring in the tightening direction.

Clause 187: the article of footwear of clause 186, further comprising a second conduit configured to encircle a portion of the drawstring along the second length as the drawstring moves relative to the second conduit, the second conduit defining an inner diameter greater than an outer diameter of the drawstring to accommodate gathering of the drawstring as the second length increases during movement of the drawstring in the slack direction.

Clause 188: the article of footwear of clause 178, wherein the cord lock comprises a housing and a lock member slidably disposed within the housing, the lock member being movable between a locked position in which the cord is restricted from moving relative to the housing and an unlocked position in which the lock member permits movement of the cord relative to the housing.

Clause 189: the article of footwear of clause 188, wherein the lock member includes a first lock surface opposite the first engagement surface of the housing and a second lock surface opposite the second engagement surface of the housing, the lock member operable to clamp a pull cord between the first lock surface and the first engagement surface in the locked position and operable to clamp the pull cord between the second lock surface and the second engagement surface in the locked position.

Clause 190: the article of footwear of clause 189, wherein the first locking surface converges with the second locking surface.

Clause 191: the article of footwear of clause 190, wherein the first locking surface is substantially parallel to the first engagement surface and the second locking surface is substantially parallel to the second engagement surface.

Clause 192: the article of footwear of clause 189, wherein the cord lock includes a release operable to move the lock member from the locked position to an unlocked position.

Clause 193: the article of footwear of clause 192, wherein the release is attached to the lock member to allow a force applied to the release to move the lock member relative to the housing in a direction away from the first and second engagement surfaces.

Clause 194: the article of footwear of clause 193, wherein the housing includes a retaining portion operable to engage the lock member when the lock member is moved a predetermined distance away from the first and second engagement surfaces, the retaining portion operable to retain the lock member in the unlocked position.

Clause 195: the article of footwear of any of clauses 178-194, wherein the lock member is biased to the locked position by the biasing member.

Clause 196: the article of footwear of clause 178, wherein the cord lock includes a housing and a spool supported by the housing and rotatable in the first direction relative to the housing when the pull cord is moved in the tightening direction and rotatable in an opposite second direction when the pull cord is moved in the loosening direction, the spool including a first annular groove and a second annular groove, the first annular groove configured to receive a first portion of the pull cord and the second annular groove configured to receive a second portion of the pull cord.

Clause 197: the article of footwear of clause 196, wherein the cord lock comprises a plurality of teeth positioned circumferentially about an axis of the spool and a first pawl supported by the housing and comprising a first biasing member configured to bias the first pawl into engagement with the plurality of teeth to selectively restrict rotation of the spool in the second direction.

Clause 198: the article of footwear of clause 197, wherein the plurality of teeth are angled to allow the spool to rotate in the first direction when the first pawl engages the plurality of teeth.

Clause 199: the article of footwear of clause 197, wherein the cord lock further comprises a release configured to selectively disengage the first pawl from the plurality of teeth to allow the spool to rotate in the second direction when a predetermined force is applied to the release that overcomes the biasing force of the first biasing member.

Clause 200: the article of footwear of clause 199, wherein the cord lock further comprises a second pawl having a second biasing member configured to bias the second pawl into engagement with a control surface associated with the spool when the first pawl is disengaged from the plurality of teeth to allow rotation of the spool in the second direction.

Clause 201: the article of footwear of clause 200, wherein the second pawl is rotatably supported by the first pawl.

Clause 202: the article of footwear of clause 196, wherein a first portion of the pull cord and a second portion of the pull cord are proximate to the spool from two opposite directions.

Clause 203: the article of footwear of any of clauses 178-182 and 185-202, wherein the cord lock is supported by an outsole attached to the upper.

Clause 204: the article of footwear of any of clauses 178-182 and 185-202, wherein the cord lock is disposed between an outsole and an insole of the footwear.

Clause 205: the article of footwear of clause 177, further comprising a first conduit operative to receive a length of the drawstring therein to accommodate gathering of the drawstring when the drawstring is moved in one of the tightening direction and the loosening direction, wherein the length of the drawstring received within the first conduit is greater than the length of the first conduit when the drawstring is moved in one of the tightening direction and the loosening direction.

Clause 206: the article of footwear of clause 205, further comprising a second conduit configured to receive a length of the drawstring therein to accommodate gathering of the drawstring when the drawstring is moved in the other of the tightening direction and the loosening direction, wherein the length of the drawstring received within the second conduit is greater than the length of the second conduit when the drawstring is moved in the other of the tightening direction and the loosening direction.

Clause 207: an article of footwear comprising: an upper; a sole structure attached to the upper; a first strand extending between the upper and the sole structure and movable in a tightening direction to move the upper to a tightened state and movable in a loosening direction to move the upper to a loosened state; and a cord lock disposed within the sole structure and operable in the locked state to restrict movement of the first cord in the slack direction and operable in the unlocked state to allow movement of the first cord in the slack direction.

Clause 208: the article of footwear of clause 207, wherein the sole structure comprises an outsole having a ground-engaging surface and an insole disposed between the outsole and the upper.

Clause 209: the article of footwear of clause 208, wherein the cord lock is received within a cavity of the insole.

Clause 210: the article of footwear of clauses 208 or 209, wherein the cord lock is opposite the outsole.

Clause 211: the article of footwear of clauses 208 or 209, wherein the cord lock is in contact with the outsole.

Clause 212: the article of footwear of clause 208, further comprising a midsole disposed between the upper and the insole.

Clause 213: the article of footwear of clause 212, wherein the cord lock is received within a cavity of the insole.

Clause 214: the article of footwear of clauses 212 or 213, wherein the cord lock is opposite the midsole.

Clause 215: the article of footwear of clauses 212 or 213, wherein the cord lock is in contact with the midsole.

Clause 216: the article of footwear of clauses 212 or 213, wherein the cord lock is attached to the midsole.

Clause 217: the article of footwear of clause 208, wherein the cord lock is attached to the insole.

Clause 218: the article of footwear of clause 217, further comprising a midsole attached to the upper.

Clause 219: the article of footwear of clause 218, wherein the midsole is disposed between the insole and the outsole.

Clause 220: the article of footwear of clause 218, wherein the midsole is disposed between the cord lock and the outsole.

Clause 221: the article of footwear of any of the preceding clauses, wherein the cord lock is disposed within one of a heel region of the sole structure, a midfoot region of the sole structure, and a forefoot region of the sole structure, the midfoot region being disposed between the heel region and the forefoot region.

Clause 222: an article of footwear comprising an upper; a sole structure including an insole; a first cord attached to the upper, the first cord movable in a tightening direction relative to the upper to move the upper to a tightened state and movable in a loosening direction relative to the upper to move the upper to a loosened state; and a cord lock disposed within the insole and operable in the locked state to restrict movement of the first cord in the slack direction and operable in the unlocked state to allow movement of the first cord in the slack direction.

Clause 223: the article of footwear of clause 207, wherein the sole structure comprises an outsole having a ground-engaging surface and an insole disposed between the outsole and the upper.

Clause 224: the article of footwear of any of the preceding clauses, wherein the cord lock is received within a cavity of the insole.

Clause 225: the article of footwear of clauses 223 or 224, wherein the cord lock is opposite the outsole.

Clause 226: the article of footwear of clauses 223 or 224, wherein the cord lock is in contact with the outsole.

Clause 227: the article of footwear of any of the preceding clauses further comprising a midsole disposed between the upper and the insole.

Clause 228: the article of footwear of clause 227, wherein the cord lock is received within a cavity of the insole.

Clause 229: the article of footwear of clauses 227 or 228, wherein the cord lock is opposite the midsole.

Clause 230: the article of footwear of clauses 227 or 228, wherein the cord lock is in contact with the midsole.

Clause 231: the article of footwear of clauses 227 or 228, wherein the cord lock is attached to the midsole.

Clause 232: the article of footwear of clause 207, wherein the cord lock is attached to the insole.

Clause 233: the article of footwear of clause 232, further comprising a midsole attached to the upper.

Clause 234: the article of footwear of clause 233, wherein the midsole is disposed between the insole and an outsole of the sole structure.

Clause 235: the article of footwear of clause 233, wherein the midsole is disposed between the cord lock and the outsole of the sole structure.

Clause 236: the article of footwear of any of the preceding clauses, wherein the cord lock is disposed within one of a heel region of the sole structure, a midfoot region of the sole structure, and a forefoot region of the sole structure, the midfoot region being disposed between the heel region and the forefoot region.

Clause 237: an article of footwear comprising an upper; a sole structure including an outsole having a ground-engaging surface; a first cord attached to the upper, the first cord movable in a tightening direction relative to the upper to move the upper to a tightened state and movable in a loosening direction relative to the upper to move the upper to a loosened state; and a cord lock disposed within the sole structure and opposite the outsole, the cord lock operable in a locked state to restrict movement of the first cord in the slack direction and operable in an unlocked state to allow movement of the first cord in the slack direction.

Clause 238: the article of footwear of clause 237, wherein the sole structure comprises an insole disposed between the outsole and the upper.

Clause 239: the article of footwear of clause 238, wherein the cord lock is received within a cavity of the insole.

Clause 240: the article of footwear of any of the preceding clauses, wherein the cord lock is in contact with the outsole.

Clause 241: the article of footwear of any of the preceding clauses, wherein the cord lock is attached to the outsole.

Clause 242: the article of footwear of any of the preceding clauses, further comprising a midsole disposed between the upper and the outsole.

Clause 243: the article of footwear of clause 242, wherein the cord lock is received within the cavity of the insole.

Clause 244: the article of footwear of clause 243, wherein the insole is disposed between the cord lock and the midsole.

Clause 245: the article of footwear of any of the preceding clauses, wherein the cord lock is disposed within one of a heel region of the sole structure, a midfoot region of the sole structure, and a forefoot region of the sole structure, the midfoot region being disposed between the heel region and the forefoot region.

Clause 246: an article of footwear comprising an upper; a sole structure; a midsole attached to the upper and disposed between the upper and the sole structure; a first cord attached to the upper, the first cord movable in a tightening direction relative to the upper to move the upper to a tightened state and movable in a loosening direction relative to the upper to move the upper to a loosened state; and a cord lock disposed within the sole structure and opposite the midsole, the cord lock operable in a locked state to restrict movement of the first cord in the slack direction and operable in an unlocked state to allow movement of the first cord in the slack direction.

Clause 247: the article of footwear of clause 246, wherein the sole structure comprises an outsole having a ground-engaging surface and an insole disposed between the outsole and the upper.

Clause 248: the article of footwear of clause 247, wherein the cord lock is received within the cavity of the insole.

Clause 249: the article of footwear of clauses 247 or 248, wherein the cord lock is in contact with the midsole.

Clause 250: the article of footwear of clauses 247 or 248, wherein the cord lock is attached to the midsole.

Clause 251: the article of footwear of clause 247, wherein the cord lock is attached to the insole.

Clause 252: the article of footwear of clause 251, wherein the cord lock is attached to the midsole.

Clause 253: the article of footwear of clause 252, wherein the cord lock is attached to the midsole by at least one of an adhesive and a fastener.

Clause 254: the article of footwear of any of clauses 251-253, wherein the midsole is disposed between the insole and the outsole.

Clause 255: the article of footwear of clause 247, wherein the midsole is disposed between the insole and the outsole.

Clause 256: the article of footwear of any of clauses 247-255, wherein the midsole is disposed between the cord lock and the outsole.

Clause 257: the article of footwear of any of the preceding clauses, wherein the cord lock is disposed within one of a heel region of the sole structure, a midfoot region of the sole structure, and a forefoot region of the sole structure, the midfoot region being disposed between the heel region and the forefoot region.

Clause 258: an article of footwear comprising an upper; a sole structure including an insole; a first cord attached to an upper, the first cord movable in a tightening direction relative to the upper to move the upper to a tightened state and movable in a loosening direction relative to the upper to move the upper to a loosened state; and a cord lock attached to the insole and operable in a locked state to restrict movement of the first cord in the slack direction and operable in an unlocked state to allow movement of the first cord in the slack direction.

Clause 259: the article of footwear of clause 258, wherein the sole structure includes an outsole having a ground-engaging surface and an insole disposed between the outsole and the upper.

Clause 260: the article of footwear of any of the preceding clauses, wherein the cord lock is received within a cavity of the insole.

Clause 261: the article of footwear of any of the preceding clauses further comprising a midsole attached to the upper.

Clause 262: the article of footwear of clause 261, wherein the cord lock is opposite the midsole.

Clause 263: the article of footwear of clause 261, wherein the cord lock is in contact with the midsole.

Clause 264: the article of footwear of clause 261, wherein the cord lock is attached to the midsole.

Clause 265: the article of footwear of clauses 261-264, wherein the midsole is disposed between the insole and an outsole of the sole structure.

Clause 266: the article of footwear of clauses 261-264, wherein the midsole is disposed between the cord lock and the outsole of the sole structure.

Clause 267: the article of footwear of any of the preceding clauses, wherein the cord lock is disposed within one of a heel region of the sole structure, a midfoot region of the sole structure, and a forefoot region of the sole structure, the midfoot region being disposed between the heel region and the forefoot region.

Clause 268: an article of footwear comprising: an upper; a first cord movable in a tightening direction away from the upper to move the upper to a tightened state and movable in a loosening direction to move the upper to a loosened state; and a cord lock disposed on the upper, and operable in a locked state to restrict movement of the first cord in the slack direction and operable in an unlocked state to allow movement of the first cord in the slack direction.

Clause 269: the article of footwear of clause 268, wherein the cord lock is disposed on a heel portion of the article of footwear.

Clause 270: the article of footwear of clause 269, wherein the cord lock includes a release wire operable to move the cord lock from the locked state to the unlocked state.

Clause 271: the article of footwear of clause 270, further comprising a sole structure attached to the upper and comprising a ground-contacting surface.

Clause 272: the article of footwear of clause 271, wherein the release line extends from the cord lock in a direction away from the ground-contacting surface.

Clause 273: the article of footwear of clauses 271 or 272, wherein the cord lock is elongate.

Clause 274: the article of footwear of clause 273, wherein a longitudinal axis of the cord lock is substantially perpendicular to the ground-contacting surface.

Clause 275: the article of footwear of clause 268, wherein the cord lock includes a release wire operable to move the cord lock from the locked state to the unlocked state.

Clause 276: the article of footwear of clause 275, further comprising a sole structure attached to the upper and comprising a ground-contacting surface.

Clause 277: the article of footwear of clause 276, wherein the release line extends from the cord lock in a direction away from the ground-contacting surface.

Clause 278: the article of footwear of clauses 276 or 277, wherein the cord lock is elongate.

Clause 279: the article of footwear of clause 278, wherein a longitudinal axis of the cord lock is substantially perpendicular to the ground-contacting surface.

Clause 280: the article of footwear of clause 268, wherein the cord lock is elongate.

Clause 281: the article of footwear of any of the preceding clauses, wherein the cord lock includes a housing having first and second engagement surfaces that converge toward one another, a lock member slidably disposed within the housing and movable between a locked state and an unlocked state, and the lock member includes first and second lock surfaces that converge toward one another, the first lock surface operable to clamp a first portion of the first cord between the first engagement surface and the first lock surface in the locked state, and the second lock surface operable to clamp a second portion of the first cord between the second engagement surface and the second lock surface in the locked state to restrict movement of the first cord in a first direction relative to the housing, the biasing member is operable to apply a biasing force and bias the lock member to the locked state.

Clause 282: the article of footwear of clause 281, wherein the biasing member is a spring.

Clause 283: the article of footwear of clause 282, wherein the spring is a coil spring.

Clause 284: the article of footwear of any of clauses 281 to 283, further comprising a release wire attached to the lock member and operable to move the lock member from the locked state to the unlocked state when the release wire is applied with a pulling force in an unlocking direction that exceeds a biasing force of the biasing member.

Clause 285: the article of footwear of clause 284, wherein the release line is attached to the lock member at an end of the lock member opposite the biasing member.

Clause 286: the article of footwear of clauses 281 to 285, wherein the lock member comprises a retaining portion operable to selectively engage the housing and retain the lock member in the unlocked state.

Clause 287: the article of footwear of clause 286, wherein the retaining portion is disposed at an end of the lock member opposite the biasing member.

Clause 288: the article of footwear of clause 286, wherein the retaining portion is formed on the tab portion of the lock member.

Clause 289: the article of footwear of clause 288, wherein the tab portion is movable relative to the lock member between a resting state and a flexed state.

Clause 290: the article of footwear of clause 288, wherein the tab portion is biased to the resting state.

Clause 291: the article of footwear of clause 288, wherein the tab portion is operable to move from the resting state to the flexed state to separate the retainer from the housing.

Clause 292: the article of footwear of clause 291, further comprising a release line attached to the tab portion, the release line operable to move the tab portion from the resting state to the flexed state.

Clause 293: the article of footwear of clause 292, wherein the release wire is operable to move the lock member from the locked state to the unlocked state when the release wire is applied with a pulling force in an unlocking direction that exceeds a biasing force of the biasing member.

Clause 294: the article of footwear of clause 281, wherein the lock member includes a first recess and a second recess that selectively receive a first retaining portion and a second retaining portion of the housing to retain the lock member in the unlocked state.

Clause 295: the article of footwear of clause 294, wherein the first retaining portion and the second retaining portion are movable between an extended state and a retracted state.

Clause 296: the article of footwear of clause 295, wherein the first retaining portion and the second retaining portion are biased to the extended state by a first biasing member and a second retaining member.

Clause 297: the article of footwear of clause 296, wherein the first biasing member and the second biasing member are springs.

Clause 298: the article of footwear of clause 296, wherein the first biasing member and the second biasing member are coil springs.

Clause 299: the article of footwear of clause 295, wherein the first retaining portion and the second retaining portion are integrally formed with the housing.

Clause 300: the article of footwear of clause 295, wherein the first retaining portion and the second retaining portion act as living hinges movable between the extended state and the retracted state.

Clause 301: the article of footwear of clause 295, wherein the first retaining portion and the second retaining portion are in the retracted state when received within the first recess and the second recess, respectively.

Clause 302: the article of footwear of clauses 281 to 301, wherein at least one of the first lock surface and the second lock surface includes a protrusion operable to grip the first strand when the lock member is in the locked state.

Clause 303: the article of footwear of clauses 281 to 301, wherein the first protrusion is angled relative to a longitudinal direction of the lock member to grip the cord and restrict movement of the cord in the first direction relative to the housing when the lock member is in the locked state.

Clause 304: the article of footwear of clauses 281 to 301, wherein the first strand is movable in a second direction opposite the first direction when the lock member is in the unlocked state.

Clause 305: an article of footwear comprising: an upper having a series of first cord guides and a series of second cord guides; a first strand including a first portion received by the first strand guide and extending between adjacent ones of the first strand guides and a second portion received by the second strand guide and extending between adjacent ones of the second strand guides, the first portion being movable in a first tightening direction and the second portion being movable in a second tightening direction to move the upper to a tightened state, and the first portion being movable in a first loosening direction and the second portion being movable in a second loosening direction to move the upper to a loosened state; a cord lock operable in a locked state to restrict movement of the first portion in the first slack direction and to restrict movement of the second portion in the second slack direction, the cord lock operable in an unlocked state to allow movement of the first portion in the first slack direction and to allow movement of the second portion in the second slack direction; and a release cord operable to move the cord lock from the locked state to the unlocked state, the release cord including a release catch located remotely from the cord lock.

Clause 306: the article of footwear of clause 305, further comprising a second strand comprising a first portion received by the strand lock and a second portion forming a cinching grip positioned away from the strand lock.

Clause 307: the article of footwear of clause 306, wherein the second strand is operable to place the first strand under tension to move the first portion in the first tightening direction and the second portion in the second tightening direction when the tightening grip is applied with a predetermined amount of force.

Clause 308: the article of footwear of clause 306, wherein the tightening grip is disposed proximate an ankle opening of the upper.

Clause 309: the article of footwear of clause 306, wherein the cinch grip is spaced apart from the release cord.

Clause 310: the article of footwear of clause 306, wherein the cinch grip is located adjacent to the release cord.

Clause 311: the article of footwear of clause 306, wherein the tightening grip is positioned closer to a forefoot region of the upper than the release cord.

Clause 312: the article of footwear of clause 306, wherein the tightening grip is positioned closer to the heel region of the upper than the release cord.

Clause 313: the article of footwear of any of the preceding clauses, wherein the cord lock is disposed on a surface of the upper.

Clause 314: the article of footwear of any of the preceding clauses wherein the cord lock is disposed on a heel region of the upper.

Clause 315: the article of footwear of clauses 305-312, further comprising a sole structure including an insole and an outsole, the cord lock being disposed within the insole.

Clause 316: the article of footwear of clause 315, wherein the cord lock is received within a cavity of the insole.

Clause 317: the article of footwear of clauses 315 or 316, wherein the cord lock is opposite the outsole.

Clause 318: the article of footwear of clauses 315 or 316, wherein the cord lock is in contact with the outsole.

Clause 319: the article of footwear of clause 315, further comprising a midsole disposed between the upper and the insole.

Clause 320: the article of footwear of clause 319, wherein the cord lock is received within a cavity of the insole.

Clause 321: the article of footwear of clauses 319 or 320, wherein the cord lock is opposite the midsole.

Clause 322: the article of footwear of clauses 319 or 320, wherein the cord lock is in contact with the midsole.

Clause 323: the article of footwear of clauses 319 or 320, wherein the cord lock is attached to the midsole.

Clause 324: the article of footwear of clause 315, wherein the cord lock is attached to the insole.

Clause 325: the article of footwear of clause 324, further comprising a midsole attached to the upper.

Clause 326: the article of footwear of clause 325, wherein the midsole is disposed between the insole and the outsole.

Clause 327: the article of footwear of clause 325, wherein the midsole is disposed between the cord lock and the outsole.

Clause 328: the article of footwear of clauses 315-327, wherein the cord lock is disposed within one of a heel region of the sole structure, a midfoot region of the sole structure, the forefoot region of the sole structure, the midfoot region disposed between the heel region and the forefoot region.

Clause 329: an article of footwear comprising an upper having a series of first cord guides and a series of second cord guides; a first strand including a first portion received by the first strand guide and extending between adjacent ones of the first strand guides and a second portion received by the second strand guide and extending between adjacent ones of the second strand guides, the first portion being movable in a first tightening direction and the second portion being movable in a second tightening direction to move the upper to a tightened state, and the first portion being movable in a first loosening direction and the second portion being movable in a second loosening direction to move the upper to a loosened state; a cord lock operable in a locked state to restrict movement of the first portion in the first slack direction and to restrict movement of the second portion in the second slack direction, the cord lock operable in an unlocked state to allow movement of the first portion in the first slack direction and to allow movement of the second cord in the second slack direction; and a second cord including a first portion received by the cord lock and a second portion forming a cinching grip positioned away from the cord lock, the second cord operable to place the first cord under tension to move the first portion in the first cinching direction and the second portion in the second cinching direction when a predetermined amount of force is applied to the cinching grip.

Clause 330: the article of footwear of clause 329, further comprising a release cord operable to move the cord lock from the locked state to the unlocked state.

Clause 331: the article of footwear of clause 330, wherein the release cord comprises a release grip positioned distally from the cord lock.

Clause 332: the article of footwear of clauses 329-331, wherein the tightening grip and the release grip are disposed proximate to each other.

Clause 333: the article of footwear of clauses 329-331, wherein the tightening grip and the release grip are spaced apart from one another.

Clause 334: the article of footwear of clauses 329-331, wherein the tightening grip is positioned closer to a forefoot region of the upper than the release cord.

Clause 335: the article of footwear of clauses 329-331, wherein the tightening grip is positioned closer to a heel region of the upper than the release cord.

Clause 336: the article of footwear of clause 329, wherein the tightening grip is disposed proximate an ankle opening of the upper.

Clause 337: the article of footwear of any of the preceding clauses, wherein the cord lock is disposed on a surface of the upper.

Clause 338: the article of footwear of any of the preceding clauses wherein the cord lock is disposed on a heel region of the upper.

Clause 339: the article of footwear of clauses 329-336, further comprising a sole structure including an insole and an outsole, the cord lock being disposed within the insole.

Clause 340: the article of footwear of clause 339, wherein the cord lock is received within a cavity of the insole.

Clause 341: the article of footwear of clauses 339 or 340, wherein the cord lock is opposite the outsole.

Clause 342: the article of footwear of clauses 339 or 340, wherein the cord lock is in contact with the outsole.

Clause 343: the article of footwear of clause 339, further comprising a midsole disposed between the upper and the insole.

Clause 344: the article of footwear of clause 343, wherein the cord lock is received within a cavity of the insole.

Clause 345: the article of footwear of clauses 343 or 344, wherein the cord lock is opposite the midsole.

Clause 346: the article of footwear of clauses 343 or 344, wherein the cord lock is in contact with the midsole.

Clause 347: the article of footwear of clauses 343 or 344, wherein the cord lock is attached to the midsole.

Clause 348: the article of footwear of clause 339, wherein the cord lock is attached to the insole.

Clause 349: the article of footwear of clause 348, further comprising a midsole attached to the upper.

Clause 350: the article of footwear of clause 349, wherein the midsole is disposed between the insole and the outsole.

Clause 351: the article of footwear of clause 349, wherein the midsole is disposed between the cord lock and the outsole.

Clause 352: the article of footwear of clauses 339-351, wherein the cord lock is disposed within one of a heel region of the sole structure, a midfoot region of the sole structure, a forefoot region of the sole structure, the midfoot region disposed between the heel region and the forefoot region.

Clause 353: an article of footwear comprising an upper defining an interior space; a first cord movable in a tightening direction to move the upper to a tightened state and a loosening direction to move the upper to a loosened state; a cord lock operable in a locked state to restrict movement of the first cord in the slack direction and operable in an unlocked state to allow movement of the first cord in the slack direction; and a sole structure attached to the upper and including a cavity in which the cord lock is received and at least one channel extending from the cavity to an exterior of the sole structure, the first cord extending from the cord lock within the cavity to the exterior of the sole structure via the at least one channel.

Clause 354: the article of footwear of clause 353, further comprising a tightening grip operable to move in a first direction away from the upper to move the first strand in the tightening direction.

Clause 355: the article of footwear of clause 354, further comprising a release grip operable to move away from the upper in a second direction to move the cord lock from the locked state to the unlocked state, the release grip and the tightening grip being separate.

Clause 356: the article of footwear of clause 355, wherein the cord lock is disposed distal from the tightening grip and the release grip.

Clause 357: the article of footwear of clause 355, wherein the release grip extends from the upper.

Clause 358: the article of footwear of clause 355, wherein the release grip is aligned with the tightening grip.

Clause 359: the article of footwear of any of the preceding clauses, wherein the sole structure comprises an insole and an outsole.

Clause 360: the article of footwear of clause 359, wherein the insole comprises a cavity.

Clause 361: the article of footwear of clause 360, wherein the cavity is opposite the outsole.

Clause 362: the article of footwear of clause 360, wherein the cavity is opposite the upper.

Clause 363: the article of footwear of clause 360, further comprising a midsole attached to the upper, the cavity being opposite the midsole.

Clause 364: the article of footwear of clause 363, wherein the strand is attached to the midsole.

Clause 365: an article of footwear comprising an upper defining an interior space; a first strand portion movable in a first tightening direction to move the upper to a tightened state and movable in a first loosening direction to move the upper to a loosened state; a second rope portion movable in a second tightening direction, the second rope portion movable in a second loosening direction when the first rope portion is moved in the first loosening direction; a cord lock operable in a locked state to restrict movement of the first cord portion in the first slack direction and to restrict movement of the second cord portion in the second slack direction, and operable in an unlocked state to allow movement of the first cord portion in the first slack direction and to allow movement of the second cord portion in the second slack direction; a first cord guide attached to the upper and receiving the first cord portion, the first cord guide including a first convex inner surface operable to engage the first cord portion and guide movement of the first cord portion relative to the upper; and a second cord guide attached to the upper and receiving the second cord portion, the second cord guide including a second convex inner surface operable to engage the second cord and guide movement of the second cord relative to the upper.

Clause 366: the article of footwear of clause 365, wherein the second strand portion forms a tightening grip that is formed as a loop and is operable to move in a first direction away from the upper to move the second strand portion in the second tightening direction.

Clause 367: the article of footwear of any of the preceding clauses, further comprising a release grip operable to move away from the upper in a second direction to move the cord lock from the locked state to the unlocked state.

Clause 368: the article of footwear of clause 367, wherein the release grip and the tightening grip are separate.

Clause 369: the article of footwear of clause 367 or clause 368, wherein the first direction is different than the second direction.

Clause 370: the article of footwear of clause 367, wherein the cord lock is disposed distal to the tightening grip and the release grip.

Clause 371: the article of footwear of any of the preceding clauses, further comprising a sole structure attached to the upper.

Clause 372: the article of footwear of clause 371, wherein the cord lock is disposed within the sole structure.

Clause 373: the article of footwear of

clauses

371 or 372, wherein the sole structure includes an insole and an outsole.

Clause 374: the article of footwear of clause 373, wherein the insole includes a cavity, the cord lock being disposed within the cavity.

Clause 375: the article of footwear of clause 374, wherein the cavity is opposite the outsole.

Clause 376: the article of footwear of clause 374, wherein the cavity is opposite the upper.

Clause 377: the article of footwear of clause 376, further comprising a midsole attached to the upper, the cavity being opposite the midsole.

Clause 378: the article of footwear of clause 377, wherein the cord lock is attached to the midsole.

Clause 379: the article of footwear of any of the preceding clauses, wherein an effective length of the second cord portion increases as the second cord portion moves in the second tightening direction.

Clause 380: the article of footwear of any of the preceding clauses, wherein an effective length of the first cord portion decreases as the first cord portion moves in the first tightening direction.

Clause 381: the article of footwear of any of the preceding clauses, wherein a portion of the first strand portion retracts into the strand lock as the first strand portion moves in the first tightening direction.

Clause 382: the article of footwear of any of the preceding clauses, wherein a portion of the second strand portion retracts into the strand lock when the second strand portion moves in the second slack direction.

Clause 383: the article of footwear of any of the preceding clauses, wherein the first strand portion and the second strand portion are portions of the same strand.

Clause 384: the article of footwear of any of the preceding clauses wherein at least one of the first strand guide and the second strand guide comprises a substantially C-shape.

Clause 385: the article of footwear of any of the preceding clauses wherein the first cord guide is disposed along a medial side of the upper and the second cord is disposed along a lateral side of the upper.

Clause 386: the article of footwear of clause 385, wherein the first convex surface is opposite the medial side and the second convex surface is opposite the lateral side.

Clause 387: the article of footwear of clause 386, wherein the first strand guide includes a first concave surface disposed on an opposite side of the first strand guide from the first convex surface, and the second strand guide includes a second concave surface disposed on an opposite side of the second strand guide from the second convex surface.

Clause 388: the article of footwear of clause 387, wherein the first concave surface is opposite the lateral side and the second concave surface is opposite the medial side.

Clause 389: the article of footwear of clause 387, wherein the first concave surface and the second concave surface are opposite in a direction extending across the upper between the medial side and the lateral side.

Clause 390: an article of footwear comprising: an upper having a heel portion, a instep portion, and a forefoot portion; a tightening grip disposed at an outer surface of the upper; a slack grip disposed at the outer surface of the upper; and a pull cord operatively connected to the tightening grip and movable in a tightening direction to move the upper to a tightened state when the tightening grip is pulled away from the upper and movable in a loosening direction to move the upper to a loosened state when the loosening grip is pulled away from the upper.

Clause 391: the article of footwear of clause 390, further comprising a cord lock operable between a locked state that restricts movement of the draw cord in the slack direction and an unlocked state that allows movement of the draw cord in both the slack direction and the take-up direction.

Clause 392: the article of footwear of clause 391, wherein the cord lock allows the pull cord to move in the tightening direction when the cord lock is in the locked state.

Clause 393: the article of footwear of clause 391, wherein the cord lock engages the draw cord in the locked state to restrict movement of the draw cord in the tightening direction when the cord lock is in the locked state.

Clause 394: the article of footwear of clause 391, wherein the cord lock is disposed within the following cavity: the cavity is disposed in a sole structure of the article of footwear.

Clause 395: the article of footwear of clause 394, wherein the cord lock is disposed at one of the heel portion and the instep portion or on a tongue portion of the upper.

Clause 396: the article of footwear of clause 391, wherein the drawstring comprises a first length between the string lock and the tightening grip and a second length between the string lock and the loosening grip, wherein movement of the drawstring in the tightening direction causes the first length to increase and the second length to decrease, and movement of the drawstring in the loosening direction causes the first length to decrease and the second length to increase.

Clause 397: the article of footwear of clause 391, wherein the cord lock includes a housing and a lock member slidably disposed within the housing, the lock member being movable between a locked position that restricts movement of the cord relative to the housing and an unlocked position that allows movement of the cord relative to the housing.

Clause 398: the article of footwear of clause 397, wherein the lock member includes a first lock surface opposite the first engagement surface of the housing and a second lock surface opposite the second engagement surface of the housing, the lock member being operable to clamp the cord between the first lock surface and the first engagement surface in the locked position, and the lock member being operable to clamp the cord between the second lock surface and the second engagement surface in the locked position.

Clause 399: the article of footwear of clause 391, wherein the cord lock includes a housing and a spool supported by the housing and rotatable in a first direction relative to the housing when the pull cord is moved in the tightening direction and rotatable in an opposite second direction relative to the housing when the pull cord is moved in the loosening direction, the spool including a first annular groove configured to collect a first portion of the pull cord and a second annular groove configured to collect a second portion of the pull cord.

Clause 400: the article of footwear of clause 399, wherein the cord lock comprises a plurality of teeth positioned circumferentially about an axis of the spool and a first pawl supported by the housing and comprising a first biasing member operable to bias the first pawl into engagement with the plurality of teeth to selectively restrict rotation of the spool in the second direction.

Clause 401: the article of footwear of clause 391, wherein the cord lock is supported by an outsole coupled with the upper.

Clause 402: the article of footwear of clause 391, wherein the drawstring includes a first length between the string lock and the tightening grip and a second length between the string lock and the loosening grip.

Clause 403: the article of footwear of clause 402, further comprising a first conduit configured to encircle a portion of the drawstring along the first length, the first conduit defining an inner diameter greater than an outer diameter of the drawstring to accommodate gathering of the drawstring as the first length increases as the drawstring moves in the tightening direction.

Clause 404: the article of footwear of clause 403, further comprising a second conduit configured to encircle a portion of the drawstring along the second length, the second conduit defining an inner diameter greater than an outer diameter of the drawstring to accommodate gathering of the drawstring as the second length increases as the drawstring moves in the slack direction.

Clause 405: the article of footwear of clause 403, wherein the first conduit forms a portion of the cinch grip.

Clause 406: the article of footwear of clause 403, wherein the cinch grip defines the first conduit and is formed from an elastic material.

Clause 407: an article of footwear comprising: an upper having a heel portion, a instep portion, and a forefoot portion; a cinch grip disposed at an outer surface of the upper and defining a first conduit; and a cord disposed within the first conduit and movable in a tightening direction to move the upper to a tightened state and movable in a loosening direction to move the upper to a loosened state when the tightening grip is pulled away from the upper, the cord including a cross-section that is smaller than a cross-section of the first conduit and operable to accumulate within the first conduit as the cord is moved to the tightened state.

Clause 408: the article of footwear of clause 407, further comprising a loose grip.

Clause 409: the article of footwear of clause 408, wherein at least one of the tightening grip and the loosening grip is located on a medial side of the upper.

Clause 410: the article of footwear of clause 408, wherein the slack grip extends at least partially around the tightening grip.

Clause 411: the article of footwear of clause 408, wherein the tightening grip is located at one of a front of an ankle opening of the upper and a rear of the ankle opening, and the loosening grip is located at one of a front of the ankle opening of the upper and a rear of the ankle opening.

Clause 412: the article of footwear of clause 408, wherein one of the tightening grip and the loosening grip extends from a medial side of the upper to a lateral side of the upper.

Clause 413: the article of footwear of clause 408, wherein the tightening grip is disposed on one of a medial side of the upper and a lateral side of the upper and the loosening grip is disposed on the other of the medial side of the upper and the lateral side of the upper.

Clause 414: the article of footwear of clause 407, wherein the cinch grip is formed from an elastic material.

Clause 415: the article of footwear of clause 414, wherein the tightening grip is substantially flat against the upper in a relaxed state, the tightening grip being biased to the relaxed state by the elastic material.

Clause 416: the article of footwear of clause 407, further comprising a cord lock operable between a locked state that restricts movement of the draw cord in the slack direction and an unlocked state that allows movement of the draw cord in both the slack direction and the take-up direction.

Clause 417: the article of footwear of clause 416, wherein the cord lock allows the draw cord to move in the tightening direction when the cord lock is in the locked state.

Clause 418: the article of footwear of clause 416, wherein the cord lock is disposed within the following cavity: the cavity is disposed in a sole structure of the article of footwear.

Clause 419: the article of footwear of clause 418, wherein the cord lock is disposed at one of the heel portion and the instep portion or on a tongue portion of the upper.

The foregoing description is provided for the purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular configuration are generally not limited to this particular configuration, but are interchangeable if possible, and can be used in a selected configuration even if the selected configuration is not specifically shown or described. The individual elements or features of a particular configuration may also be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.

Claims

1. An article of footwear comprising:

an upper having a heel portion, a instep portion, and a forefoot portion;

a tightening grip disposed at the heel portion of the upper;

a slack grip disposed at the instep portion of the upper; and

a pull cord operatively connected to the take-up grip and movable in a take-up direction to move the upper to a take-up state when the take-up grip is pulled away from the upper;

A rope lock operable between a locked state that restricts movement of the rope in the loosening direction and an unlocked state that allows movement of the rope in both the loosening direction and the tightening direction; and

a first conduit configured to encircle a portion of the pull cord along a first length, the first conduit defining an inner diameter greater than an outer diameter of the pull cord to accommodate bunching of the pull cord as the first length increases as the pull cord moves in the tightening direction.

2. The article of footwear of claim 1, wherein the cord lock allows the draw cord to move in the tightening direction when the cord lock is in the locked state.

3. The article of footwear of claim 2, wherein the cord lock engages the draw cord in the locked state to restrict movement of the draw cord in the slack direction when the cord lock is in the locked state.

4. The article of footwear of claim 1, wherein the cord lock is disposed within: the cavity is disposed in a sole structure of the article of footwear.

5. The article of footwear of claim 4, wherein the cord lock is disposed at one of the heel portion and the instep portion or on a tongue portion of the upper.

6. The article of footwear of claim 1, wherein the drawstring includes the first length between the string lock and the tightening grip and a second length between the string lock and the loosening grip, wherein movement of the drawstring in the tightening direction causes the first length to increase and the second length to decrease, and movement of the drawstring in the loosening direction causes the first length to decrease and the second length to increase.

7. The article of footwear of claim 1, wherein the cord lock includes a housing and a lock member slidably disposed within the housing, the lock member being movable between a locked position that restricts movement of the draw cord relative to the housing and an unlocked position that allows movement of the draw cord relative to the housing.

8. The article of footwear of claim 7, wherein the lock member includes a first lock surface opposite the first engagement surface of the housing and a second lock surface opposite the second engagement surface of the housing, the lock member being operable to clamp the cord between the first lock surface and the first engagement surface in the locked position, and the lock member being operable to clamp the cord between the second lock surface and the second engagement surface in the locked position.

9. The article of footwear of claim 1, wherein the cord lock includes a housing and a spool supported by the housing, and the spool is rotatable in a first direction relative to the housing when the cord is moved in the tightening direction and the spool is rotatable in a second, opposite direction relative to the housing when the cord is moved in the loosening direction, the spool including a first annular groove configured to collect a first portion of the cord and a second annular groove configured to collect a second portion of the cord.

10. The article of footwear of claim 9, wherein the cord lock includes a plurality of teeth positioned circumferentially about an axis of the spool and a first pawl supported by the housing and including a first biasing member configured to bias the first pawl into engagement with the plurality of teeth to selectively restrict rotation of the spool in the second direction.

11. The article of footwear of claim 1, wherein the cord lock is supported by an outsole coupled with the upper.

12. The article of footwear of claim 1, wherein the drawstring includes a first length between the string lock and the cinch grip and a second length between the string lock and the cinch grip.

13. The article of footwear of claim 12, further comprising a second conduit configured to encircle a portion of the drawstring along the second length, the second conduit defining an inner diameter greater than an outer diameter of the drawstring to accommodate gathering of the drawstring as the second length increases as the drawstring moves in the slack direction.

14. The article of footwear of claim 1, wherein the first conduit forms a portion of the cinch grip.

15. The article of footwear of claim 1, wherein the cinch grip defines the first conduit and is formed of an elastic material.

16. An article of footwear comprising:

an upper having a heel portion, a instep portion, and a forefoot portion;

a cinch grip disposed at the heel portion of the upper and defining a first conduit;

a slack grip disposed at the instep portion of the upper; and

a pull cord disposed within the first conduit and movable in a tightening direction to move the upper to a tightened state when the tightening grip is pulled away from the upper and movable in a loosening direction to move the upper to a loosened state when the loosening grip is pulled away from the upper, the pull cord including a cross-section that is smaller than a cross-section of the first conduit and operable to accumulate within the first conduit as the pull cord is moved to the tightened state;

17. The article of footwear of claim 16, wherein one of the tightening grip and the loosening grip extends from a medial side of the upper to a lateral side of the upper.

18. The article of footwear of claim 16, wherein the tightening grip is formed of an elastic material.

19. The article of footwear of claim 18, wherein the tightening grip lies flat against the upper in a relaxed state, the tightening grip being biased to the relaxed state by the elastic material.

20. The article of footwear of claim 16, wherein the cord lock allows the draw cord to move in the tightening direction when the cord lock is in the locked state.

21. The article of footwear of claim 16, wherein the cord lock is disposed within: the cavity is disposed in a sole structure of the article of footwear.

22. The article of footwear of claim 21, wherein the cord lock is disposed at one of the heel portion and the instep portion or on a tongue portion of the upper.

23. An article of footwear comprising:

an upper having a heel portion, a instep portion, and a forefoot portion;

a tightening grip disposed at the heel portion of the upper;

a slack grip disposed at the instep portion of the upper; and

a pull cord operatively connected to the take-up grip and the slack grip, the pull cord movable in a take-up direction to move the upper to a take-up state when the take-up grip is pulled away from the upper, and the pull cord movable in a slack direction to move the upper to a slack state when the slack grip is pulled away from the upper;

24. The article of footwear of claim 23, wherein the cord lock allows the draw cord to move in the tightening direction when the cord lock is in the locked state.

25. The article of footwear of claim 23, wherein the cord lock restricts movement of the draw cord in the tightening direction when the cord lock is in the locked state.

26. The article of footwear of any of claims 23-25, wherein the cord lock is biased to the locked state.

27. The article of footwear of any of claims 23-25, wherein the cord lock includes a release operable to transition the cord lock from the locked state to the unlocked state.

28. The article of footwear of any of claims 23-25, further comprising an outsole attached to the upper and including a ground-engaging surface and an inner surface disposed on an opposite side of the outsole than the ground-engaging surface, the inner surface defining a receiving area in which the cord lock is received.

29. The article of footwear of any of claims 23 to 25, further comprising an outsole attached to the upper and including a ground-engaging surface and an inner surface disposed on an opposite side of the outsole from the ground-engaging surface, and an insole having a footbed and a bottom surface disposed on an opposite side of the insole from the footbed and opposite the inner surface of the outsole to define a cavity therebetween, the cord lock being disposed within the cavity between the inner surface of the outsole and the bottom surface of the insole.

30. The article of footwear of any of claims 23-25, wherein the drawstring includes a continuous loop defining a first length between the string lock and the tightening grip and a second length between the string lock and the loosening grip, wherein movement of the drawstring in the tightening direction causes the first length to increase and the second length to decrease, and movement of the drawstring in the loosening direction causes the first length to decrease and the second length to increase.

31. The article of footwear of claim 30, further comprising a second conduit configured to encircle a portion of the drawstring along the second length as the drawstring moves relative to the second conduit, the second conduit defining an inner diameter greater than an outer diameter of the drawstring to accommodate gathering of the drawstring as the second length increases during movement of the drawstring in the slack direction.

32. The article of footwear of claim 23, wherein the cord lock includes a housing and a lock member slidably disposed within the housing, the lock member being movable between a locked position that restricts movement of the draw cord relative to the housing and an unlocked position that allows movement of the draw cord relative to the housing.

33. The article of footwear of claim 32, wherein the lock member includes a first lock surface opposite the first engagement surface of the housing and a second lock surface opposite the second engagement surface of the housing, the lock member being operable to clamp a cord between the first lock surface and the first engagement surface in the locked position, and the lock member being operable to clamp the cord between the second lock surface and the second engagement surface in the locked position.

34. The article of footwear of claim 33, wherein the first lock surface converges with the second lock surface.

35. The article of footwear of claim 34, wherein the first lock surface is parallel to the first engagement surface and the second lock surface is parallel to the second engagement surface.

36. The article of footwear of claim 33, wherein the cord lock includes a release operable to move the lock member from the locked position to the unlocked position.

37. The article of footwear of claim 36, wherein the release is attached to the lock member to allow a force applied to the release to move the lock member relative to the housing in a direction away from the first and second engagement surfaces.

38. The article of footwear of claim 37, wherein the housing includes a retaining portion operable to engage the latch member when the latch member is moved a predetermined distance away from the first and second engagement surfaces, the retaining portion operable to retain the latch member in the unlocked position.

39. The article of footwear of any of claims 32-38, wherein the lock member is biased to the locked position by a biasing member.

40. The article of footwear of claim 23, wherein the cord lock includes a housing and a spool supported by the housing, and the spool is rotatable in a first direction relative to the housing when the cord is moved in the tightening direction and the spool is rotatable in a second, opposite direction relative to the housing when the cord is moved in the loosening direction, the spool including a first annular groove configured to collect a first portion of the cord and a second annular groove configured to collect a second portion of the cord.

41. The article of footwear of claim 40, wherein the cord lock includes a plurality of teeth positioned circumferentially about an axis of the spool and a first pawl supported by the housing and including a first biasing member configured to bias the first pawl into engagement with the plurality of teeth to selectively restrict rotation of the spool in the second direction.

42. The article of footwear of claim 41, wherein the plurality of teeth are angled to allow the spool to rotate in the first direction when the first pawl engages the plurality of teeth.

43. The article of footwear of claim 41, wherein the cord lock further includes a release configured to selectively disengage the first pawl from the plurality of teeth to allow the spool to rotate in the second direction when a predetermined force is applied to the release that overcomes the biasing force of the first biasing member.

44. The article of footwear of claim 43, wherein the cord lock further includes a second pawl having a second biasing member configured to bias the second pawl into engagement with a control surface associated with the spool when the first pawl is disengaged from the plurality of teeth to allow rotation of the spool in the second direction.

45. The article of footwear of claim 44, wherein the second pawl is rotatably supported by the first pawl.

46. The article of footwear of claim 40, wherein the first portion of the pull cord and the second portion of the pull cord are adjacent the spool from two opposite directions.

47. The article of footwear of any of claims 23-25, wherein the cord lock is supported by an outsole attached to the upper.

48. The article of footwear of any of claims 23-25, wherein the cord lock is disposed between an outsole and an insole of the footwear.